A Revised Phylogenetic Classification for Viola (Violaceae)

. 2022 Aug 27 ; 11 (17) : . [epub] 20220827

Status PubMed-not-MEDLINE Jazyk angličtina Země Švýcarsko Médium electronic

Typ dokumentu časopisecké články, přehledy

Perzistentní odkaz   https://www.medvik.cz/link/pmid36079606

The genus Viola (Violaceae) is among the 40-50 largest genera among angiosperms, yet its taxonomy has not been revised for nearly a century. In the most recent revision, by Wilhelm Becker in 1925, the then-known 400 species were distributed among 14 sections and numerous unranked groups. Here, we provide an updated, comprehensive classification of the genus, based on data from phylogeny, morphology, chromosome counts, and ploidy, and based on modern principles of monophyly. The revision is presented as an annotated global checklist of accepted species of Viola, an updated multigene phylogenetic network and an ITS phylogeny with denser taxon sampling, a brief summary of the taxonomic changes from Becker's classification and their justification, a morphological binary key to the accepted subgenera, sections and subsections, and an account of each infrageneric subdivision with justifications for delimitation and rank including a description, a list of apomorphies, molecular phylogenies where possible or relevant, a distribution map, and a list of included species. We distribute the 664 species accepted by us into 2 subgenera, 31 sections, and 20 subsections. We erect one new subgenus of Viola (subg. Neoandinium, a replacement name for the illegitimate subg. Andinium), six new sections (sect. Abyssinium, sect. Himalayum, sect. Melvio, sect. Nematocaulon, sect. Spathulidium, sect. Xanthidium), and seven new subsections (subsect. Australasiaticae, subsect. Bulbosae, subsect. Clausenianae, subsect. Cleistogamae, subsect. Dispares, subsect. Formosanae, subsect. Pseudorupestres). Evolution within the genus is discussed in light of biogeography, the fossil record, morphology, and particular traits. Viola is among very few temperate and widespread genera that originated in South America. The biggest identified knowledge gaps for Viola concern the South American taxa, for which basic knowledge from phylogeny, chromosome counts, and fossil data is virtually absent. Viola has also never been subject to comprehensive anatomical study. Studies into seed anatomy and morphology are required to understand the fossil record of the genus.

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Becker W. Viola L. In: Engler A., editor. Die Natürlichen Pflanzenfamilien 21. Parietales und Opuntiales. Volume 21. Wilhelm Engelmann; Leipzig, Germany: 1925. pp. 363–376.

Ballard H.E., Sytsma K.J., Kowal R.R. Shrinking the violets: Phylogenetic relationships of infrageneric groups in Viola (Violaceae) based on internal transcribed spacer DNA sequences. Syst. Bot. 1999;23:439–458. doi: 10.2307/2419376. DOI

Wahlert G.A., Marcussen T., de Paula-Souza J., Feng M., Ballard H.E. A phylogeny of the Violaceae (Malpighiales) inferred from plastid DNA sequences: Implications for generic diversity and intrafamilial taxonomy. Syst. Bot. 2014;39:239–252. doi: 10.1600/036364414X678008. DOI

Marcussen T., Ballard H.E., Wahlert G.A., de Paula-Souza J. Dated phylogeny and historical biogeography of Violaceae. Unpublished manuscript .

Stevens P.F. Angiosperm Phylogeny Website. Version 14, July 2017 [and more or less continuously updated since] [(accessed on 15 August 2022)]. Available online: http://www.mobot.org/MOBOT/research/APweb/

Frodin D.A. History and concepts of big plant genera. Taxon. 2004;53:753–776. doi: 10.2307/4135449. DOI

De Carvalho L.M., Fernandes F.M., de Fátima Nunes M., Brigola J., Casbas N., Groves C. History and cultivation of parma violets (Viola, Violaceae) in the United Kingdom and France in the nineteenth century. Harv. Pap. Bot. 2013;18:137–145. doi: 10.3100/025.018.0207. DOI

Matthiolus P.A. Herbarz: Ginak Bylinář Welmi Vžitečný a Figůrami Pieknymi y Zřetedlnymi Podlé Praweho a Yako Ziwého Zrostu Bylin Ozdobeny y Také Mnohymi a Zkussenymi Lékarzstwijmi Rozhognieny Gessto Takowy Nikdá w Ziádnem Yazyku prwé Wydán Nebyl. u Girzijka Melantrycha z Awentynu; W Starém Miestie Pražském [The Old City of Prague, Kingdom of Bohemia]: 1562.

Mills S., Hutchins R. Violae Herba Cum Flore—Wild Pansy (Flowering Aerial Parts) The Scientific Foundation for Herbal Medicinal Products; Exeter, UK: 2015. pp. 1–14. ESCOP Monographs Online Series.

Park S., Yoo K.-O., Marcussen T., Backlund A., Jacobsson E., Rosengren K.J., Doo I., Göransson U. Cyclotide evolution: Insights from the analyses of their precursor sequences, structures and distribution in violets (Viola) Front. Plant Sci. 2017;8:2058. doi: 10.3389/fpls.2017.02058. PubMed DOI PMC

Jennings C., West J., Waine C., Craik D., Anderson M. Biosynthesis and insecticidal properties of plant cyclotides: The cyclic knotted proteins from Oldenlandia affinis. Proc. Natl. Acad. Sci. USA. 2001;98:10614–10619. doi: 10.1073/pnas.191366898. PubMed DOI PMC

Gilding E.K., Jackson M.A., Poth A.G., Henriques S.T., Prentis P.J., Mahatmanto T., Craik D.J. Gene coevolution and regulation lock cyclic plant defence peptides to their targets. New Phytol. 2016;210:717–730. doi: 10.1111/nph.13789. PubMed DOI

Camarero J.A., Campbell M.J. The potential of the cyclotide scaffold for drug development. Biomedicines. 2019;7:31. doi: 10.3390/biomedicines7020031. PubMed DOI PMC

Rajendran S., Slazak B., Mohotti S., Strömstedt A.A., Göransson U., Hettiarachchi C.M., Gunasekera S. Tropical vibes from Sri Lanka—Cyclotides from Viola betonicifolia by transcriptome and mass spectrometry analysis. Phytochemistry. 2021;187:112749. doi: 10.1016/j.phytochem.2021.112749. PubMed DOI

Slazak B., Kaltenböck K., Steffen K., Rogala M., Rodríguez-Rodríguez P., Nilsson A., Shariatgorji R., Andrén P.E., Göransson U. Cyclotide host-defense tailored for species and environments in violets from the Canary Islands. Sci. Rep. 2021;11:12452. doi: 10.1038/s41598-021-91555-y. PubMed DOI PMC

Von Soden H. Über ätherische Öle, welche durch Extraktion frischer Blüten mit flüchtigen Lösungsmitteln gewonnen werden (ätherische Blütenextraktöle) J. Für Prakt. Chem. 1904;69:256–272. doi: 10.1002/prac.19040690117. DOI

Saint-Lary L., Roy C., Paris J.-P., Tournayre P., Berdagué J.-L., Thomas O.P., Xavier Fernandez X. Volatile compounds of Viola odorata absolutes: Identification of odorant active markers to distinguish plants originating from France and Egypt. Chem. Biodivers. 2014;11:843–860. doi: 10.1002/cbdv.201300387. PubMed DOI

Aloum L., Alefishat E., Adem A., Petroianu G. ionone is more than a violet’s fragrance: A review. Molecules. 2020;25:5822. doi: 10.3390/molecules25245822. PubMed DOI PMC

Marcussen T., Karlsson T. Violaceae. In: Karlsson T., editor. Flora Nordica. Volume 6. Swedish Royal Academy of Sciences; Stockholm, Sweden: 2010. pp. 12–52.

Malécot V., Marcussen T., Munzinger J., Yockteng R., Henry M. On the origin of the sweet-smelling Parma Violet cultivars (Violaceae): Wide intraspecific hybridization, sterility, and sexual reproduction. Amer. J. Bot. 2007;94:29–41. doi: 10.3732/ajb.94.1.29. PubMed DOI

Yuzepchuk S.V. Viola L. In: Shishkin B.K., editor. Flora of the U.S.S.R. Volume 15. Israel Program for Scientific Translations; Jerusalem, Israel: 1949. pp. 263–360.

Muñoz Garmendia F., Montserrat P., Laínz M., Aldasoro J.J. Viola L. In: Castroviejo S., Aedo C., Cirujano S., Laínz M., Montserrat P., Morales R., Muñoz Garmendia F., Navarro C., Paiva J., Soriano C., editors. Flora iberica. Volume 3. Real Jardín Botánico—C.S.I.C.; Madrid, Spain: 1993. pp. 276–298.

Gibbons E. Stalking the Healthful Herbs. David McKay, Co.; Philadelphia, PA, USA: 1972.

Tokuoka T. Molecular phylogenetic analysis of Violaceae (Malpighiales) based on plastid and nuclear DNA sequences. J. Plant Res. 2008;121:253–260. doi: 10.1007/s10265-008-0153-0. PubMed DOI

Ballard H.E., de Paula-Souza J., Wahlert G.A. Violaceae. In: Kubitzki K., editor. Flowering Plants. Eudicots: Malpighiales. Springer; Berlin/Heidelberg, Germany: 2014. pp. 303–322.

Thomson G.M. Notes on cleistogamic flowers of the genus Viola. Trans. Proc. N. Zeal. Inst. 1878;11:415–417.

Culley T.M., Klooster M.R. The cleistogamous breeding system: A review of its frequency, evolution, and ecology in angiosperms. Bot. Rev. 2007;73:1–30. doi: 10.1663/0006-8101(2007)73[1:TCBSAR]2.0.CO;2. DOI

Marcussen T., Heier L., Brysting A.K., Oxelman B., Jakobsen K.S. From gene trees to a dated allopolyploid network: Insights from the angiosperm genus Viola (Violaceae) Syst. Biol. 2015;64:84–101. doi: 10.1093/sysbio/syu071. PubMed DOI PMC

Clausen J. Chromosome number and relationship of some North American species of Viola. Ann. Bot. 1929;63:741–764. doi: 10.1093/oxfordjournals.aob.a090198. DOI

Zachos J., Pagani M., Sloan L., Thomas E., Billups K. Trends, rhythms, and aberrations in global climate 65 Ma to present. Science. 2001;292:686–693. doi: 10.1126/science.1059412. PubMed DOI

Westerhold T., Marwan N., Drury A.J., Liebrand D., Agnini C., Anagnostou E., Barnet J.S.K., Bohaty S.M., de Vleeschouwer D., Florindo F., et al. An astronomically dated record of Earth’s climate and its predictability over the last 66 million years. Science. 2020;369:1383–1387. doi: 10.1126/science.aba6853. PubMed DOI

Sauermilch I., Whittaker J.M., Klocker A., Munday D.R., Hochmuth K., Bijl P.K., LaCasce J.H. Gateway-driven weakening of ocean gyres leads to Southern Ocean cooling. Nat. Commun. 2021;12:6465. doi: 10.1038/s41467-021-26658-1. PubMed DOI PMC

Antonelli A., Nylander J.A.A., Persson C., Sanmartín I. Tracing the impact of the Andean uplift on Neotropical plant evolution. Proc. Natl. Acad. Sci. USA. 2009;106:9749–9754. doi: 10.1073/pnas.0811421106. PubMed DOI PMC

Aragón E., D’Eramo F., Castro A., Pinotti L., Brunelli D., Rabbia O., Rivalenti G., Varela R., Spakman W., Demartis M., et al. Tectono-magmatic response to major convergence changes in the North Patagonian suprasubduction system; the Paleogene subduction–transcurrent plate margin transition. Tectonophysics. 2011;509:218–237. doi: 10.1016/j.tecto.2011.06.012. DOI

Armijo R., Lacassin R., Coudurier-Curveur A., Carrizo D. Coupled tectonic evolution of Andean orogeny and global climate. Earth-Sci. Rev. 2015;143:1–35. doi: 10.1016/j.earscirev.2015.01.005. DOI

Pérez-Escobar O.A., Zizka A., Bermúdez M.A., Meseguer A.S., Condamine F.L., Hoorn C., Hooghiemstra H., Pu Y., Bogarín D., Boschman L.M., et al. The Andes through time: Evolution and distribution of Andean floras. Trends Plant Sci. 2022;27:364–378. doi: 10.1016/j.tplants.2021.09.010. PubMed DOI

Krahulcová A., Krahulec F., Kirschner J. Introgressive hybridization between a native and an introduced species: Viola lutea subsp. sudetica versus V. tricolor. Folia Geobot. Phytotax. 1996;31:319–344. doi: 10.1007/BF02812066. DOI

Brandrud K.H. Faculty of Mathematics and Natural Sciences. University of Oslo; Oslo, Norway: 1989. Viola epipsila, V. palustris og V. epipsila × palustris i Sørøst-Norge. En undersøkelse av cytologi, morfologi og økologi; pp. 1–86.

Røren V., Stabbetorp O.E., Borgen L. Hybridization between Viola canina and V. persicifolia in Norway. Nord. J. Bot. 1994;14:165–172. doi: 10.1111/j.1756-1051.1994.tb00582.x. DOI

Cortés-Palomec A.C., Ballard H.E. Evidence for hybridization between two sympatric violet species, Viola grahamii and V. hookeriana (Violaceae), in central Mexico. IDA Contrib. Bot. 2006;22:1119–1133.

Wood T.E., Takebayashi N., Barker M.S., Mayrose I., Greenspoon P.B., Rieseberg L.H. The frequency of polyploid speciation in vascular plants. Proc. Natl. Acad. Sci. USA. 2009;106:13875–13879. doi: 10.1073/pnas.0811575106. PubMed DOI PMC

Mayrose I., Zhan S.H., Rothfels C.J., Magnuson-Ford K., Barker M.S., Rieseberg L.H., Otto S.P. Recently formed polyploid plants diversify at lower rates. Science. 2011;333:1257. doi: 10.1126/science.1207205. PubMed DOI

Miyaji Y. Untersuchungen über die Chromosomenzahlen bei einigen Viola-Arten. Bot. Mag. Tokyo. 1913;27:443–460. doi: 10.15281/jplantres1887.27.322_443. DOI

Miyaji Y. Studien über die Zahlenverhältnisse der Chromosomen bei der Gattung Viola. Cytologia. 1929;1:28–58. doi: 10.1508/cytologia.1.28. DOI

Marcussen T., Jakobsen K.S., Danihelka J., Ballard H.E., Blaxland K., Brysting A.K., Oxelman B. Inferring species networks from gene trees in high-polyploid North American and Hawaiian violets (Viola, Violaceae) Syst. Biol. 2012;61:107–126. doi: 10.1093/sysbio/syr096. PubMed DOI PMC

Gingins de la Sarraz F.C.J. Mémoire sur la famille des Violacées. Mém. Soc. Phys. Hist. Nat. Genève. 1823;2:1–27.

Gingins de la Sarraz F.C.J., de Candolle A.P. Viola . In: De Candolle A.P., editor. Prodromus Systematis Naturalis Regni Vegetabilis. Volume 1. Treuttel et Würtz; Parisiis, France: 1824. pp. 291–306.

Reiche K.F., Taubert P. Violaceae. In: Engler A., Prantl K., editors. Die Natürlichen Pflanzenfamilien, 3 (6) Verlag von Wilhelm Engelmann; Leipzig, Germany: 1895. pp. 322–336.

Görz R. Wilhelm Becker. Verh. Bot. Vereins Prov. Brandenbg. 1929;71:142–150.

Wein K. Wilhelm Becker †. Mitth. Thüring. Bot. Vereins N.F. 1930;39:14–16.

Merrill E.D. Destruction of the Berlin herbarium. Science. 1943;98:490–491. doi: 10.1126/science.98.2553.490. PubMed DOI

Hiepko P. The collections of the Botanical Museum Berlin-Dahlem (B) and their history. Englera. 1987;7:219–252. doi: 10.2307/3776724. DOI

Heilborn O. Bidrag til Violaceernas cytologi. Sven. Bot. Tidskr. 1926;20:414–419.

Gershoy A. Studies in North American violets I. General considerations. Bull. Vermont Agric. Exp. Sta. 1928;279:3–18.

Clausen J. Genetical and cytological investigations on Viola tricolor L. and V. arvensis Murr. Berlingska Boktr. 1926;8:1–156. doi: 10.1111/j.1601-5223.1926.tb03159.x. DOI

Clausen J. Chromosome number and the relationship of species in the genus Viola. Ann. Bot. 1927;61:677–714. doi: 10.1093/oxfordjournals.aob.a090098. DOI

Gershoy A. Studies in North American violets III. Chromosome numbers and species characters. Bull. Vermont Agric. Exp. Sta. 1934;367:3–91.

Dodd J.D., Gershoy A. Experiments in the grafting of species in the genus Viola. Bull. Torrey Bot. Club. 1943;70:91–103. doi: 10.2307/2481361. DOI

Clausen J. Cytotaxonomy and distributional ecology of western North American violets. Madroño. 1964;17:173–197.

Marcussen T., Blaxland K., Windham M.D., Haskins K.E., Armstrong F. Establishing the phylogenetic origin, history and age of the narrow endemic Viola guadalupensis (Violaceae) Amer. J. Bot. 2011;98:1978–1988. doi: 10.3732/ajb.1100208. PubMed DOI

Espeut M. Revision of the genus Viola L. (Violaceae) in the Russian Far East with notes on adjacent territories. Bot. Pac. 2020;9:3–52. doi: 10.17581/bp.2020.09113. DOI

Sparre B.B. Systematical and nomenclaturistical studies on the genus Viola. I. An attempt at a revision of the section “Chilenium”. Lilloa. 1949;17:377–416.

Sparre B.B. Systematical and nomenclatorial studies on the genus Viola. II. Further annotations on the section Chilenium. Lilloa. 1950;23:347–364.

Merxmüller H. Veilchenstudien I–IV. Phyton. 1974;16:137–158.

Merxmüller H., Lippert W. Veilchenstudien V–VII. Mitt. Bot. Staatssamml. München. 1977;13:503–534.

Erben M. Cytotaxonomische Untersuchungen an südosteuropäischen Viola-Arten der Section Melanium. Mitt. Bot. Staatssamml. München. 1985;21:339–740.

Gil-ad N.L. Systematics of Viola subsection Boreali-Americanae. Boissiera. 1997;53:1–130.

Watson J.M., Flores A.R., Nicola M.V., Marcussen T. Viola subgenus Andinium, Preliminary Monograph. Scottish Rock Garden Club with International Rock Gardener; Glasgow, UK: 2021. pp. 1–215.

Brainerd E. Violets of North America. Bull. Vermont. Agric. Exp. Station. 1921;224:1–172.

Baird V.B. Wild Violets of North America. University of California Press; Berkeley, CA, USA: 1942. p. 225.

Baehni C., Weibel R. Violaceae. In: Macbride J.F., editor. Flora of Peru. Volume 13 (part 4, number 1) Field Museum of Natural History, Botanical Series; Chicago, IL, USA: 1941. pp. 56–82.

Nikitin V.V. The system of the genus Viola (Violaceae) of Eastern European and Caucasian flora. Bot. Zhurn. 1998;83:123–137. (In Russian)

Valentine D.H., Merxmüller H., Schmidt A. Viola L. In: Tutin T.G., Heywood V.H., Burges N.A., Moore D.M., Valentine D.H., Walters S.M., Webb D.A., editors. Flora Europaea. Volume 2. University Press; Cambridge, UK: 1968. pp. 270–282.

Jacobs M., Moore D.M. Flora Malesiana. Volume 7. Naturalis journals and series; Leiden, The Netherlands: 1971. Violaceae; pp. 178–212.

Wang J.C., Huang T.C. Notes on the flora of Taiwan 9. The Viola L. Violaceae. Taiwania. 1990;35:12–56. doi: 10.6165/tai.1990.35.12. DOI

Wang C. Violaceae. Flora Reipublicae Pop. Sin. 1991;51:1–148. (In Chinese)

Sun K., Wang Q., Wang Y. Numerical taxonomic study of Viola in China. J. Northwest Normal Univ. (Nat. Sci. Ed.) 1997;33:69–73. (In Chinese, with English Abstract)

Chen Y.S., Quin-er Y., Ohba H., Nikitin V.V. Flora of China. Volume 13. Science Press, Beijing and Missouri Botanical Garden Press; St. Louis, USA: 2007. Violaceae; pp. 74–111.

Schmidt A. Violaceae. In: Rechinger K.H., editor. Flora Iranica. Volume 169. Akademische Druck- und Verlagssantalt; Graz, Austria: 1992. pp. 1–29.

Nicola M.V. Viola L. In: Zuloaga F.O., Belgrano M.J., editors. Flora Vascular de la República Argentina: Dicotyledoneae-Celastrales, Cucurbitales, Fagales, Malpighiales, Oxalidales. Volume 17. Instituto de Botánica Darwinion; San Isidro, Buenos Aires, Argentina: 2017. pp. 371–408.

Ballard H.E., Sytsma K.J. Evolution and biogeography of the woody Hawaiian violets (Viola, Violaceae): Arctic origins, herbaceous ancestry and bird dispersal. Evolution. 2000;54:1521–1532. doi: 10.1111/j.0014-3820.2000.tb00698.x. PubMed DOI

Yoo K.-O., Jang S.-K., Lee W.-T. Phylogeny of Korean Viola based on ITS sequences. Korean J. Plant Taxon. 2005;35:7–23. doi: 10.11110/kjpt.2005.35.1.007. DOI

Yoo K.-O., Jang S.-K. Phylogenetic relationships of Viola based on matK and atpB-rbcL sequences of chloroplast DNA. Korean J. Plant Taxon. 2007;37:1–15. doi: 10.11110/kjpt.2007.37.1.001. DOI

Van den Hof K., Van den Berg R.G., Gravendeel B. Chalcone synthase gene lineage diversification confirms allopolyploid evolutionary relationships of European rostrate violets. Mol. Biol. Evol. 2008;25:2099–2108. doi: 10.1093/molbev/msn157. PubMed DOI

Havran J.C., Sytsma K.J., Ballard H.E. Evolutionary relationships, interisland biogeography, and molecular evolution in the Hawaiian violets (Viola: Violaceae) Amer. J. Bot. 2009;96:2087–2099. doi: 10.3732/ajb.0900021. PubMed DOI

Gong Q., Zhou J.S., Zhang Y.X., Liang G.X., Chen H.F., Xing F.W. Molecular systematics of genus Viola L. in China. J. Trop. Subtrop. Bot. 2010;18:633–642. doi: 10.3969/j.issn.1005-3395.2010.06.007. DOI

Liang G.X., Xing F.W. Infrageneric phylogeny of the genus Viola (Violaceae) based on trnL-trnF, psbA-trnH, rpL16, ITS sequences, cytological and morphological data. Acta Bot. Yunn. 2010;32:477–488. doi: 10.3724/SP.J.1143.2010.10122. DOI

Marcussen T., Oxelman B., Skog A., Jakobsen K.S. Evolution of plant RNA polymerase IV/V genes: Evidence of subneofunctionalization of duplicated NRPD2/NRPE2-like paralogs in Viola (Violaceae) BMC Evol. Biol. 2010;10:1–15. doi: 10.1186/1471-2148-10-45. PubMed DOI PMC

Yoo K.-O., Jang S.-K. Infrageneric relationships of Korean Viola based on eight chloroplast markers. J. Syst. Evol. 2010;48:474–481. doi: 10.1111/j.1759-6831.2010.00102.x. DOI

Fan Q., Chen S., Wang L., Chen Z., Liao W. A new species and new section of Viola (Violaceae) from Guangdong, China. Phytotaxa. 2015;197:15–26. doi: 10.11646/phytotaxa.197.1.2. DOI

Mohammadi Shahrestani M., Marcussen T., Saeidi Mehrvarz S., Yousefi N. Morphological and phylogenetic relationships within Viola sect. Sclerosium (Violaceae) in Iran. Flora. 2015;215:67–74. doi: 10.1016/j.flora.2015.07.008. DOI

Małobęcki A., Marcussen T., Bohdanowicz J., Migdałek G., Słomka A., Kuta E. Cleistogamy and phylogenetic position of Viola uliginosa (Violaceae) re-examined. Bot. J. Linn. Soc. 2016;182:180–194. doi: 10.1111/boj.12460. DOI

Blaxland K., Ballard H.E., Marcussen T. Viola pluviae sp. nov. (Violaceae), a member of subsect. Stolonosae in the Pacific Northwest region of North America. Nord. J. Bot. 2018;36:e01931. doi: 10.1111/njb.01931. DOI

Krause S., Kadereit J.W. Identity of the Calcarata species complex in Viola sect. Melanium (Violaceae) Willdenowia. 2020;50:195–206. doi: 10.3372/wi.50.50205. DOI

Cowie R.H., Bouchet P., Fontaine B. The Sixth Mass Extinction: Fact, fiction or speculation? Biol. Rev. 2022;97:640–663. doi: 10.1111/brv.12816. PubMed DOI PMC

Bilz M., Kell S.P., Maxted N., Lansdown R.V. European Red List of Vascular Plants. Publications Office of the European Union; Luxembourg: 2011.

Yokota M., Higa S., Yoshioka H., Shimabuku K.-I. Viola stoloniflora (Violaceae), a new species from the Ryukyus. Bot. Mag. Shokubutsu-Gaku-Zasshi. 1988;101:1–8. doi: 10.1007/BF02488389. DOI

Kwiatkowska M., Żabicka J., Migdałek G., Żabicki P., Cubała M., Bohdanowicz J., Słomka A., Jedrzejczyk-Korycinska M., Sliwinska E., Sychta K., et al. Comprehensive characteristics and genetic diversity of the endemic Australian Viola banksii (section Erpetion, Violaceae) Aust. J. Bot. 2019;67:81–98. doi: 10.1071/BT18233. DOI

Moore D.M. Chromosome numbers of Falkland islands angiosperms. Br. Antarct. Surv. Bull. 1967;14:69–82.

Becker W. Violae andinae. Bot. Jahrb. Syst. Pflanzengesch. Pflanzengeogr. 1906;37:587–592.

Becker W. Violae novae Americanae meridionalis. Repert. Spec. Nov. Regni Veg. 1922;18:180–186. doi: 10.1002/fedr.19220181004. DOI

Becker W. Beiträge zur Veilchenflora Argentiniens und Chiles. Repert. Spec. Nov. Regni Veg. 1926;23:222–227.

Huelsenbeck J.P., Nielsen R., Bollback J.P. Stochastic mapping of morphological characters. Syst. Biol. 2003;52:131–158. doi: 10.1080/10635150390192780. PubMed DOI

Simpson B.B. Pleistocene changes in the flora of the high tropical Andes. Paleobiology. 1975;1:273–294. doi: 10.1017/S0094837300002530. DOI

Van der Hammen T., Cleef A.M. High Altitude Tropical Biogeography. Oxford University Press; New York, NY, USA: 1986.

Gregory-Wodzicki K.M. Uplift history of the Central and Northern Andes: A review. Bull. Geol. Soc. Am. 2000;112:1091–1105. doi: 10.1130/0016-7606(2000)112<1091:UHOTCA>2.0.CO;2. DOI

Taylor D.W. Paleobiogeographic relationships of Andean angiosperms of Cretaceous to Pliocene age. Palaeogeogr. Palaeoclimatol. Palaeoecol. 1991;88:69–84. doi: 10.1016/0031-0182(91)90015-J. DOI

Boschman L.M. Andean mountain building since the Late Cretaceous: A paleoelevation reconstruction. Earth-Sci. Rev. 2021;220:103640. doi: 10.1016/j.earscirev.2021.103640. DOI

Montes C., Cardona A., McFadden R., Morón S.E., Silva C.A., Restrepo-Moreno S., Ramírez D.A., Hoyos N., Wilson J., Farris D., et al. Evidence for middle Eocene and younger land emergence in central Panama: Implications for Isthmus closure. GSA Bull. 2012;124:780–799. doi: 10.1130/B30528.1. DOI

Carlquist S. The biota of long-distance dispersal. V. Plant dispersal to pacific islands. Bull. Torrey Bot. Club. 1967;94:129–162. doi: 10.2307/2484044. DOI

Kuta E. Biosystematic studies on the genus Viola L; section Plagiostigma Godr. I. Karyological analysis of V. epipsila Ledeb.; V. palustris L. and their hybrids from Poland. Acta Biol. Crac. Ser. Bot. 1989;31:29–44.

Kuta E. Biosystematic studies on the genus Viola L; section Plagiostigma Godr. II. Embryological analysis of V. epipsila Ledeb.; V. palustris L. and their hybrids from Poland. Acta Biol. Crac. Ser. Bot. 1989;31:45–62.

Schmidt A. Zytotaxonomische Untersuchungen an europäischen Viola-Arten der Sektion Nomimium. Oesterr. Bot. Z. 1961;108:20–88. doi: 10.1007/BF01297773. DOI

Moore D.M. Population studies on Viola lactea Sm. and its wild hybrids. Evolution. 1959;13:318–332. doi: 10.1111/j.1558-5646.1959.tb03019.x. DOI

Marcussen T., Borgen L. Species delimitation in the Ponto-Caucasian Viola sieheana complex, based on evidence from allozymes, morphology, ploidy levels, and crossing experiments. Plant Syst. Evol. 2011;201:183–196. doi: 10.1007/s00606-010-0377-z. DOI

Marcussen T., Borgen L. Allozymic variation and relationships within Viola subsection Viola (Violaceae) Plant Syst. Evol. 2000;223:29–57. doi: 10.1007/BF00985325. DOI

Yoshida M., Takeda S., Yokoyama J. A new and noteworthy hybrid of Viola (Violaceae) from Iwate, northern Japan: Viola rostrata var. japonica × V. violacea var. makinoi. Acta Phytotax. Geobot. 2016;67:115–122. doi: 10.18942/APG.201517. DOI

Nikitin V.V. New species and hybrids in the genus Viola L. (Violaceae)/Нoвые виды и гибриды рoда Viola L. (Violaceae) Novosti Sist. Vyssh. Rast. 2003;35:135–146. (In Russian)

Gradstein F.M., Ogg J.G., Smith A.G. A Geologic Time Scale 2004. Cambridge University Press; Cambridge, NY, UK: 2005. p. 589.

Rice A., Šmarda P., Novosolov M., Drori M., Glick L., Sabath N., Meiri S., Belmaker J., Mayrose I. The global biogeography of polyploid plants. Nat. Ecol. Evol. 2019;3:265–273. doi: 10.1038/s41559-018-0787-9. PubMed DOI

Sanso A.M., Seo M.N. Chromosomes of some Argentine angiosperms and their taxonomic significance. Caryologia. 2005;58:171–177. doi: 10.1080/00087114.2005.10589447. DOI

Reiche K.F. Violae chilenses Ein Beitrag zur Systematik der Gattung Viola. Bot. Jahrb. 1893;16:405–452.

Watson J.M., Flores A.R., Arroyo-Leuenberger S.C. A new Viola (Violaceae) from the Argentinian Andes. Willdenowia. 2019;49:35–41. doi: 10.3372/wi.49.49105. DOI

Maximowicz C.J. Enumeratio Plantarum Hucusque in Mongolia Nec Non Adjacente Parte Turkestaniae Sinensis Lectarum. Fasc. 1. Thalamiflorae et Disciflorae. Typis Academiae Imperialis Scientiarum Petropolitanae; St. Petersburg, Russia: 1889.

Blaxland K. A new species of Viola (Violaceae) from south-west Turkey. Bot. J. Linn. Soc. 2004;145:505–509. doi: 10.1111/j.1095-8339.2004.00294.x. DOI

Chen Y.S., Yang Q.E. A new species of Viola (Violaceae) from southern China. Bot. J. Linn. Soc. 2008;158:755–761. doi: 10.1111/j.1095-8339.2008.00935.x. DOI

Huang Y.-S., Kang N., Zhong X.-J., Liao W.-B., Fan Q. A new species of Viola (Violaceae) from Guangdong Province, China. PhytoKeys. 2021;176:67. doi: 10.3897/phytokeys.176.65443. PubMed DOI PMC

Ning Z.-L., Zeng Z.-X., Chen L., Xu B.-Q., Liao J.-P. Viola jinggangshanensis (Violaceae), a new species from Jiangxi, China. Ann. Bot. Fenn. 2012;49:383–386. doi: 10.5735/085.049.0610. DOI

Knoche K.G., Marcussen T. Viola barhalensis (Violaceae), a new species from northeastern Turkey. Phytotaxa. 2016;275:14–22. doi: 10.11646/phytotaxa.275.1.2. DOI

Reiche K.F. Flora de Chile. Volume 1. Imprenta Cervantes; Santiago, Chile: 1896. Viola. pp. 137–162.

Linnaeus C. Species Plantarum. Volume 2. Laurentius Salvius; Holmiae [Stockholm], Sweden: 1753. pp. 561–1200.

Borbás V.V. Viola . In: Hallier E.H., Brand A., editors. Synopsis der Deutschen und Schweizer Flora, Enthaltend die Genauer Bekannten Phanerogamischen Gewächse, So Wie die Cryptogamischen Gefäss-Pflanzen, Welche in Deutschland, der Schweiz, in Preussen und Istrien Wild Wachsen. 3rd ed. Volume 1. O. R. Reisland; Leipzig, Germany: 1892. pp. 161–226.

Kupffer K.R. Violaceae. In: Kusnezow N.I., Busch N.A., Fomin A.V., editors. Flora Caucasica Critica. Volume 3. Tipografija K. Mattisena; Jurjev [Tartu], Russia: 1909. pp. 158–248.

Gerstlauer L. Vorschläge zur Systematik der einheimischen Veilchen. Ber. Bayer. Bot. Ges. Erforsch. Heim. Flora. 1943;26:12–55.

Barthélémy D., Caraglio Y. Plant architecture: A dynamic, multilevel and comprehensive approach to plant form, structure and ontogeny. Ann. Bot. 2007;99:375–407. doi: 10.1093/aob/mcl260. PubMed DOI PMC

Seguí J., Lázaro A., Traveset A., Salgado-Luarte C., Gianoli E. Phenotypic and reproductive responses of an Andean violet to environmental variation across an elevational gradient. Alp. Bot. 2018;128:59–69. doi: 10.1007/s00035-017-0195-9. DOI

Holdsworth M. Cleistogamy of Viola cunninghamii. Trans. Roy. Soc. N. Z. Bot. 1966;3:169.

Evans L.T. Chasmogamous flowering in Viola palustris L. Nature. 1956;178:1301. doi: 10.1038/1781301a0. DOI

Mayers A.M., Lord E.M. Comparative flower development in the cleistogamous species Viola odorata. I. A growth rate study. Am. J. Bot. 1983;70:1548–1555. doi: 10.1002/J.1537-2197.1983.TB10858.X. DOI

Mayers A.M., Lord E.M. Comparative flower development in the cleistogamous species Viola odorata. II. An organographic study. Am. J. Bot. 1983;70:1556–1563. doi: 10.1002/j.1537-2197.1983.tb10859.x. DOI

Mayers A.M., Lord E.M. Comparative flower development in the cleistogamous species Viola odorata. III. A histological study. Bot. Gaz. 1984;145:83–91. doi: 10.1086/337430. DOI

Borgström G. Formation of cleistogamic and chasmogamic flowers in wild violets as a photoperiodic response. Nature. 1939;144:514–515. doi: 10.1038/144514b0. DOI

Russell N.H. Studies in the photoperiodic responses of violets (Viola) S. W. Naturalist. 1960;5:177–186. doi: 10.2307/3668940. DOI

Sternberger A.L., Ruhil A.V.S., Rosenthal D.M., Ballard H.E., Wyatt S.E. Environmental impact on the temporal production of chasmogamous and cleistogamous flowers in the mixed breeding system of Viola pubescens. PLoS ONE. 2020;15:e0229726. doi: 10.1371/journal.pone.0229726. PubMed DOI PMC

Rubin G., Paolillo D.J., Jr. Vascular and general anatomy of the rootstocks of three stemless Viola species. Ann. Bot. 1978;42:981–988. doi: 10.1093/oxfordjournals.aob.a085537. DOI

Bağcı Y., Dinç M., Öztürk M. Morphological, anatomical and ecological study on Turkish endemic Viola yildirimlii M. Dinç & Y. Bağcı. Int. J. Nat. Eng. Sci. 2008;2:1–5.

Gavrilova O., Nikitin V.V. Palynological characteristics of East European Viola species (Violaceae) according to scanning electron microscope data. Bot. Zhurn. 2012;97:100–115.

Yousefi N., Saeidi Mehrvarz S., Marcussen T. Anatomical studies on selected species of Viola (Violaceae) Nord. J. Bot. 2012;30:461–469. doi: 10.1111/j.1756-1051.2011.01266.x. DOI

Saeidi Mehrvarz S., Vafi M., Marcussen T. Taxonomic and anatomical notes on Viola sect. Viola (Violaceae) in Iran. Wulfenia. 2013;20:73–79.

Mohammadi Shahrestani M., Saeidi Mehrvarz S., Marcussen T., Yousefi N. Taxonomy and comparative anatomical studies of Viola sect Sclerosium (Violaceae) in Iran. Acta Bot. Gall. 2014;161:343–353. doi: 10.1080/12538078.2014.932702. DOI

Colombo P., Spadaro V., Raimondo F.M. Morpho-anatomical analysis of Viola tineorum and V. ucriana (Violaceae) endemic to the mountains around Palermo (NW-Sicily) Bocconea. 2007;21:233–247.

Mereacre A., Toniuc A., Toma C. Histo-anatomical observations regarding Viola L. Species in the Gârboavele reserve (county of Galaţi) Analele Şti. Univ. "Al. I. Cuza" Iaşi Sect. II A Biol. Veget. 2014;60:13–24.

Pilberg C., Ricco M.V., Alvarez M.A. Foliar anatomy of Viola maculata growing in Parque Nacional Los Alerces, Chubut, Patagonia, Argentina. Rev. Bras. De Farmacogn. 2016;26:459–463. doi: 10.1016/j.bjp.2016.03.008. DOI

Chen M., Gao M.-F., Liu L.-L., Wang L.-H., Wang K.-M., Hou Y.-T. Comparative study on micro-morphology of the leaf surfaces from the genus Viola L. (Violaceae) in Shandong. J. Wuhan Bot. Res. 2010;28:268–278.

Meusel H., Kästner A. Zur Wuchsform einiger Veilchenarten. Phyton. 1974;16:127–135.

Mark P.J.L., Wortley A.H., Furness C.A. Not a shrinking violet: Pollen morphology of Violaceae (Malpighiales) Grana. 2012;51:181–193. doi: 10.1080/00173134.2012.679310. DOI

Nadot S., Ballard H.E., Creach J.B., Dajoz I. The evolution of pollen heteromorphism in Viola: A phylogenetic approach. Plant Syst. Evol. 2000;223:155–171. doi: 10.1007/BF00985276. DOI

Tomović G., Đurović S., Buzurović U., Niketić M., Milanović Đ., Mihailović N., Jakovljević K. Accumulation of potentially toxic elements in Viola L. (Sect. Melanium Ging.) from the ultramafic and non-ultramafic soils of the Balkan Peninsula. Water Air Soil Pollut. 2021;232:46. doi: 10.1007/s11270-021-04992-w. DOI

Aksoy A. Accumulation of cadmium, copper and zinc in selected natural Viola taxa in Turkish Mediterranean serpentine soils. Anatol. J. Bot. 2021;5:138–143. doi: 10.30616/ajb.999023. DOI

De Salas M.F. Viola serpentinicola (Violaceae), a new Tasmanian species endemic to serpentinised ultramafic soils. Muelleria. 2018;36:112–117. doi: 10.5962/p.291980. DOI

Watson J.M., Cárdenas M., Flores A.R., Macaya J., Jimenez H.G., Barría J. Viola gelida, a new, rare and vulnerable rosulate species from the high Andes of Atacama Region, Chile. Gayana Bot. 2013;70:390–394. doi: 10.4067/S0717-66432013000200016. DOI

Watson J.M., Flores A.R. Meet our most unique viola and its Andean habitat. A renamed new species endemic to the northern semi-desert Altiplano of Chile. Int. Rock Gard. 2020;128:3–52.

Severne B.C., Brooks R.R. A nickel-accumulating plant from Western Australia. Planta. 1972;103:91–94. doi: 10.1007/BF00394610. PubMed DOI

Cole M.M. Geobotanical and biogeochemical investigations in the sclerophyllous woodland and shrub associations of the Eastern Goldfield Area of Western Australia, with particular reference to the role of Hybanthus floribundus (Lindl.) F. Muell. as a nickel indicator and accumulator plant. J. Appl. Ecol. 1973;10:269–320. doi: 10.2307/2404730. DOI

Weerasinghe H.A.S., Iqbal M.C.M. Plant diversity and soil characteristics of the Ussangoda serpentine site. J. Natl. Sci. Found. Sri Lanka. 2011;39:355–363. doi: 10.4038/jnsfsr.v39i4.3884. DOI

Fernando E.S., Quimado M.O., Doronila A.I. Rinorea niccolifera (Violaceae), a new, nickel-hyperaccumulating species from Luzon Island, Philippines. PhytoKeys. 2014;37:1–13. doi: 10.3897/phytokeys.37.7136. PubMed DOI PMC

Paul A., Gei V., Isnard S., Fogliani B., Echevarria G., Erskine P., Jaffré T., Munzinger J., van der Ent A. Nickel hyperaccumulation in New Caledonian Hybanthus (Violaceae) and occurrence of nickel-rich phloem in Hybanthus austrocaledonicus. Ann. Bot. 2020;126:905–914. doi: 10.1093/aob/mcaa112. PubMed DOI PMC

Müller H. The Fertilisation of Flowers. Translated and Edited by D’Arcy W. Thompson, B.A.; Scholar of Trinity College, Cambridge, with a Preface by Charles Darwin. with Illustrations. Macmillan and Co.; London, UK: 1883. pp. 1–669.

Beattie A.J. Floral evolution in Viola. Ann. Missouri Bot. Gard. 1974;61:781–793. doi: 10.2307/2395029. DOI

Culley T.M. Reproductive biology and delayed selfing in Viola pubescens (Violaceae), an understory herb with chasmogamous and cleistogamous flowers. Int. J. Plant Sci. 2002;163:113–122. doi: 10.1086/324180. DOI

Freitas L., Sazima M. Floral biology and pollination in two Viola species—From nectar to pollen flowers? Ann. Bot. 2003;91:311–317. doi: 10.1093/aob/mcg025. PubMed DOI PMC

Son H.D., Im H.T., Hon E.J., Park S.J. Species biology study of pollination and myrmecochory on two Viola species. Korean J. Nat. Conserv. 2008;6:143–147. doi: 10.30960/kjnc.2008.6.3.143. (In Korean) DOI

Murúa M., Espinoza C., Bustamante R., Marín V.H., Medel R. Does human-induced habitat transformation modify pollinator-mediated selection? A case study in Viola portalesia (Violaceae) Oecologia. 2010;163:153–162. doi: 10.1007/s00442-010-1587-3. PubMed DOI

Tinoco B.A., Graham C.H., Aguilar J.M., Schleuning M. Effects of hummingbird morphology on specialization in pollination networks vary with resource availability. Oikos. 2017;126:52–60. doi: 10.1111/oik.02998. DOI

Herrera C.M. Selection on floral morphology and environmental determinants of fecundity in a hawk moth-pollinated violet. Ecol. Monogr. 1993;63:251–275. doi: 10.2307/2937101. DOI

McPavlis Viola delphinantha and its sisters. Int. Rock Gard. 2010;2010:11–12.

Thiele K.R., Prober S.M. New species and a new hybrid in the Viola hederacea species complex, with notes on Viola hederacea Labill. Muelleria. 2003;18:7–25. doi: 10.5962/p.254920. DOI

Kwiatkowska M., Bohdanowicz J., Cubała M., Słomka A., Żabicka J., Żabicki P., Migdałek G., Marcussen T., Thiele K., Kuta E. A new pollination system in non-cleistogamous species of Viola results from nyctinastic (night-closing) petal movements—A mixed outcrossing-selfing strategy. Flora. 2019;253:1–9. doi: 10.1016/j.flora.2019.01.007. DOI

Nylin S., Slove J., Janz N. Host plant utilization, host range oscillations and diversification in Nymphalid butterflies: A phylogenetic investigation. Evolution. 2014;68:105–124. doi: 10.1111/evo.12227. PubMed DOI PMC

Simonsen T.J. Fritillary phylogeny, classification, and larval host plants: Reconstructed mainly on the basis of male and female genitalic morphology (Lepidoptera: Nymphalidae: Argynnini) Biol. J. Linn. Soc. 2006;89:627–673. doi: 10.1111/j.1095-8312.2006.00697.x. DOI

Wahlberg N., Leneveu J., Kodandaramaiah U., Peña C., Nylin S., Freitas A.V.L., Brower A.V.Z. Nymphalid butterflies diversify following near demise at the Cretaceous/Tertiary boundary. Proc. R. Soc. B Biol. Sci. 2009;276:4295–4302. doi: 10.1098/rspb.2009.1303. PubMed DOI PMC

Chazot N., Wahlberg N., Freitas A.V.L., Mitter C., Labandeira C., Sohn J.-C., Sahoo R.K., Seraphim N., de Jong R., Heikkilä M. Priors and posteriors in Bayesian timing of divergence analyses: The age of butterflies revisited. Syst. Biol. 2019;68:797–813. doi: 10.1093/sysbio/syz002. PubMed DOI PMC

De Moya R.S., Savage W.K., Tenney C., Bao X., Wahlberg N., Hill R.I. Interrelationships and diversification of Argynnis Fabricius and Speyeria Scudder butterflies. Syst. Entomol. 2017;42:635–649. doi: 10.1111/syen.12236. DOI

Kovar-Eder J., Kvaček Z., Meller B. Comparing Early to Middle Miocene floras and probable vegetation types of Oberdorf N Voitsberg (Austria), Bohemia (Czech Republic), and Wackersdorf (Germany) Rev. Palaeobot. Palynol. 2001;114:83–125. doi: 10.1016/S0034-6667(00)00070-1. PubMed DOI

Kovar-Eder J., Meller B. Plant assemblages from the hanging wall sequence of the opencast mine Oberdorf N Voitsberg, Styria (Austria, Early Miocene, Ottnangian) Palaeontogr. Abt. B Paläophytol. 2001;259:65–112. doi: 10.1127/palb/259/2001/65. DOI

Simonsen T.J., Wahlberg N., Warren A.D., Sperling F.A.H. The evolutionary history of Boloria (Lepidoptera: Nymphalidae): Phylogeny, zoogeography and larval–foodplant relationships. Syst. Biodivers. 2010;8:513–529. doi: 10.1080/14772000.2010.532833. DOI

Oszast J., Stuchlik L. The Neogene vegetation of the Podhale (West Carpathians, Poland) [Roślinność Podhala w neogenie] Acta Palaeobot. 1977;18:45–86.

Li W.-Y., Wu H.-F. A palynological investigation on the Late Tertiary and Early Quaternary and its significance in the paleogeographical study in Central Yunnan. Acta Geogr. Sin. (Ti Li Lsueh Pao) 1978;33:142–155. (In Chinese with English Summary)

Bolotnikova M.D. Spore and Pollen Assemblages from Tertiary Deposits of the Western Shore of the Japanese Sea [Sporovo-Pyltsevye Kompleksy Tretichnykh Otlozheniy Zapadnogo Poberezhya Yaponskogo Morya] Nauka; Moscow, Russia: 1979. pp. 1–195.

Zheng Y.-H., Zhou S.-F., Liu X.-Q., Wang L.-Y., Xu S.-J., Wang X.-Z. Neogene sporo-pollen grains from northern Jiangsu and South Yellow Sea Basin. Bull. Nanjing Inst. Geol. Palaeontol. (Acad. Sin.) 1981;3:29–90. (In Chinese with English Summary)

Tomskaya A.I. Palynology of Cenozoic Deposits of Yakutia [Palinologiya Kaynozoya Yakutii] Nauka; Novosibirsk, Russia: 1981. pp. 1–221.

Knobloch E. Paleobotanic evidence on the age of the Plio-Pleistocene deposits between Mohelnice and Kroměříž [Paleobotanické doklady ke stáří pliocenních–pleistocenních uloženin mezi Mohelnicí a Kroměříží] Věstn. Ústřed. Ústavu Geol. [Bull. Geol. Surv. Prague] 1987;62:25–33.

Utescher T., Ivanov D., Harzhauser M., Bozukov V., Ashraf A.R., Rolf C., Urbat M., Mosbrugger V. Cyclic climate and vegetation change in the late Miocene of western Bulgaria. Palaeogeogr. Palaeoclimatol. Palaeoecol. 2009;272:99–114. doi: 10.1016/j.palaeo.2008.11.014. DOI

Szafer W. Flora plioceńska z Krościenka n/Dunajcem, II (The Pliocene flora of Krościenko in Poland) Rozpr. Wydz. Mat. Przyr. PAU Dz. B. 1947;72:1–213.

Szafer W. Miocenska flora ze Starych Gliwic na Śląsku (Miocene Flora of Stare Gliwice in Upper Silesia) Pr. Inst. Geol. 1961;33:1–205.

Dorofeev P.I. Tretichnye flory zapadnoi Sibiri [The Tertiary floras of western Siberia] Izdatel’stvo Akademii Nauk SSSR; Moscow/Leningrad, Russia: 1963. p. 343.

Łańcucka-Środoniowa M. Macroscopic plant remains from the freshwater Miocene of the Nowy Sącz Basin (West Carpathians, Poland)/Szczątki makroskopowe roślin z miocenu słodkowodnego Kotliny Sądeckiej (Karpaty Zachodnie, Polska) Acta Palaeobot. 1979;20:3–117.

Van der Burgh J. Allochthonous seed and fruit floras from the Pliocene of the lower Rhine Basin. Rev. Palaeobot. Palynol. 1983;40:33–90. doi: 10.1016/0034-6667(83)90004-0. DOI

Van der Burgh J. Miocene floras in the lower Rhenish Basin and their ecological interpretation. Rev. Palaeobot. Palynol. 1987;52:299–366. doi: 10.1016/0034-6667(87)90064-9. DOI

Mai D.H., Walther H. Die pliozänen Floren von Thüringen, Deutsche Demokratische Republik. Quartärpalaeontologie. 1988;7:55–297.

Mai D.H. Die mittelmiozänen und obermiozänen Floren aus der Meuroer und Raunoer Folge in der Lausitz. III. Fundstellen und Palaeobiologie. Palaeontograph. Abt. B. 2001;258:1–85.

Arbuzova O.N. Viola L. In: Budantsev L., editor. Iskopaemye Tsvetkovye Rastenija Rossii I Sopredel’nyh Gosudarstv [Fossil Flowering Plants of Russia and Adjacent States]. Nyctaginaceae—Salicaceae. Volume 4. Komarov Botanical Institute of the Russian Academy of Sciences; Moscow, Russia: 2005. pp. 48–52.

Hollick A. Plant remains from a Pleistocene lake deposit in the Upper Connecticut River Valley. Brittonia. 1931;1:35–55. doi: 10.2307/2804655. DOI

Bennike O. News from the Plio-Pleistocene Kap København Formation, North Greenland. Polar Res. 1987;5:339–340. doi: 10.3402/polar.v5i3.6908. DOI

Farlow J.O., Sunderman J.A., Havens J.J., Swinehart A.L., Holman J.A., Richards R.L., Miller N.G., Martin R.A., Hunt R.M., Storrs G.W., et al. The Pipe Creek Sinkhole biota, a diverse late Tertiary continental fossil assemblage from Grant County, Indiana. Am. Midl. Nat. 2001;145:367–378. doi: 10.1674/0003-0031(2001)145[0367:TPCSBA]2.0.CO;2. DOI

Fletcher T.L., Telka A., Rybczynski N., Matthews J.V., Jr. Neogene and early Pleistocene flora from Alaska, USA and Arctic/Subarctic Canada: New data, intercontinental comparisons and correlations. Palaeontol. Electron. 2021;24:a08. doi: 10.26879/1121. DOI

Mai D.H. Zur Bedeutung von Relikten in der Florengeschichte. In: Vent W., editor. 100-Jahre Arboretum Berlin Jubiläumsschrift. Humboldt-Universität Berlin; Berlin, Germany: 1980. pp. 281–307.

Nikitin V.V. Trends of morphological evolution and relationships of taxa within genus Viola (Violaceae) of Eastern European and Caucasian Flora. Bot. Zhurnal. 2002;87:31–55. (In Russian)

Ciangherotti A., Esu D., Martinetto E., Giuntelli P. The remarkable Middle Pliocene non-marine mollusc record from Ceresole d’Alba, Piedmont, north-west Italy: Biochronology, palaeobiogeography and palaeoecology supported by fossil plants. Geobios. 2007;40:573–587. doi: 10.1016/j.geobios.2006.10.005. DOI

Nemcok M., Pospisil L., Lexa J., Donelick R.A. Tertiary subduction and slab break-off model of the Carpathian–Pannonian region. Tectonophysics. 1998;295:307–340. doi: 10.1016/S0040-1951(98)00092-4. DOI

Babushkin A.E., Volkova V.S., Gnibidenko Z.N. Unified Regional Stratigraphic Charts of Neogene and Paleogene Deposits of the West Siberian Plain and Explanatory Note. SNIIGGiMS; Novosibirsk, Russia: 2001. pp. 1–82. (In Russian)

Schäfer A., Utescher T., Mörs T. Stratigraphy of the Cenozoic Lower Rhine Basin, northwestern Germany. Newsl. Stratigr. 2004;40:73–110. doi: 10.1127/0078-0421/2004/0040-0073. DOI

Bojňanský V., Fargašová A. The Carpathian Mountains Region. Springer; Dordrecht, The Netherlands: 2007. Atlas of Seeds and Fruits of Central and East-European Flora; pp. 1–1046.

Gil-ad N.L. The micromorphologies of seed coats and petal trichomes of the taxa of Viola subsect. Boreali-Americanae (Violaceae) and their utility in discerning orthospecies from hybrids. Brittonia. 1998;50:91–121. doi: 10.2307/2807722. DOI

Beattie A.J., Lyons N. Seed dispersal in Viola (Violaceae): Adaptations and strategies. Am. J. Bot. 1975;62:714–722. doi: 10.1002/j.1537-2197.1975.tb14104.x. DOI

Eckstein R.L., Otte A. Effects of cleistogamy and pollen source on seed production and offspring performance in three endangered violets. Basic Appl. Ecol. 2005;6:339–350. doi: 10.1016/j.baae.2004.12.002. DOI

Yockteng R., Ballard H.E., Mansion G., Dajoz I., Nadot S. Phylogenetic relationships among pansies (Viola section Melanium) investigated using ITS and ISSR markers. Plant Syst. Evol. 2003;241:153–170. doi: 10.1007/s00606-003-0045-7. DOI

Šmarda P., Knápek O., Březinová A., Horová L., Grulich V., Danihelka J., Veselý P., Šmerda J., Rotreklová O., Bureš P. Genome sizes and genomic guanine+cytosine (GC) contents of the Czech vascular flora with new estimates for 1700 species. Preslia. 2019;91:117–142. doi: 10.23855/preslia.2019.117. DOI

Pustahija F., Brown S.C., Bogunić F., Bašić N., Muratović E., Ollier S., Hidalgo O., Bourge M., Stevanović V., Siljak-Yakovlev S. Small genomes dominate in plants growing on serpentine soils in West Balkans, an exhaustive study of 8 habitats covering 308 taxa. Plant Soil. 2013;373:427–453. doi: 10.1007/s11104-013-1794-x. DOI

Siljak-Yakovlev S., Pustahija F., Šolić E.M., Bogunić F., Muratović E., Bašić N., Catrice O., Brown S.C. Towards a genome size and chromosome number database of Balkan Flora: C-Values in 343 taxa with novel values for 242. Adv. Sci. Lett. 2010;3:190–213. doi: 10.1166/asl.2010.1115. DOI

Cires E., Cuesta C., Fernández Casado M.A., Nava H.S., Vázquez V.M., Fernández Prieto J.A. Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: An example in the genus Viola L. (Violaceae) Anales Jard. Bot. Madrid. 2011;68:139–154. doi: 10.3989/ajbm.2273. DOI

Gonzáles P., Cano A. Two new species of Viola (Violaceae) named in honor of preceding Peruvian botanists. Phytotaxa. 2016;283:83–90. doi: 10.11646/phytotaxa.283.1.6. DOI

Gonzáles P., Molina-Alor J. Viola tovarii (Violaceae), a new species for Peruvian high Andes. Phytotaxa. 2020;451:245–250. doi: 10.11646/phytotaxa.451.3.8. DOI

Nicola M.V., Salomón L., Zuloaga F.O. Nomenclatural and taxonomic study in species of Viola (Violaceae) from Argentina. Phytotaxa. 2018;338:26. doi: 10.11646/phytotaxa.338.2.1. DOI

McCauley R.A., Ballard H.E. Viola calcicola (Violaceae), a new endemic violet from the Guadalupe Mountains of New Mexico and Texas. J. Bot. Res. Inst. Texas. 2013;7:9–20.

Thiele K., De Salas M.F., Walsh N.G., Messina A., Little R.J., Prober S.M. Viola curtisiae, a new rank for a poorly understood species, with notes on V. hederacea subsp. seppeltiana. Muelleria. 2018;36:107–111. doi: 10.5962/p.291979. DOI

Thiele K.R., Prober S.M. Viola silicestris, a new species in Viola section Erpetion from Australia. Telopea. 2006;11:99–104. doi: 10.7751/telopea20065710. DOI

Okamoto M. A new species of Viola collected in East Kalimantan, with notes on the seed dispersal of the allied species concerned. Bull. Osaka Mus. Nat. Hist. 1984;37:9–15.

Okamoto M., Okada H., Ueda K. Morphology and chromosome number of Viola pilosa, and its systematic position. Taxon. 1993;42:781–787. doi: 10.2307/1223263. DOI

Okamoto M., Ueda K. A new species of violet from Seram (Moluccas) Acta Phytotax. Geobot. 1986;37:1–8. doi: 10.18942/bunruichiri.KJ00001078567. DOI

Li X.-C., Wang Z.-W., Wang Q., Ge B.-J., Chen B., Yu P., Zhong X. Viola shiweii, a new species of Viola (Violaceae) from karst forest in Guizhou, China. PhytoKeys. 2022;196:63–89. doi: 10.3897/phytokeys.196.83176. PubMed DOI PMC

Sternberger A.L., Bowman M.J., Kruse C.P.S., Childs K.L., Ballard H.E., Wyatt S.E. Transcriptomics identifies modules of differentially expressed genes and novel cyclotides in Viola pubescens. Front. Plant Sci. 2019;10:165. doi: 10.3389/fpls.2019.00156. PubMed DOI PMC

Lewin H.A., Richards S., Lieberman Aiden E., Allende M.L., Archibald J.M., Bálint M., Barker K.B., Baumgartner B., Belov K., Bertorelle G., et al. The Earth BioGenome Project 2020: Starting the clock. Proc. Natl. Acad. Sci. USA. 2022;119:e2115635118. doi: 10.1073/pnas.2115635118. PubMed DOI PMC

Slazak B., Jacobsson E., Kuta E., Göransson U. Exogenous plant hormones and cyclotide expression in Viola uliginosa (Violaceae) Phytochemistry. 2015;117:527–536. doi: 10.1016/j.phytochem.2015.07.016. PubMed DOI

Gao J., Luo M., Zhu Y., He Y., Wang Q., Zhang C. Transcriptome sequencing and differential gene expression analysis in Viola yedoensis Makino (Fam. Violaceae) responsive to cadmium (Cd) pollution. Biochem. Biophys. Res. Commun. 2015;459:60–65. doi: 10.1016/j.bbrc.2015.02.066. PubMed DOI

Leebens-Mack J.H., Barker M.S., Carpenter E.J. One thousand plant transcriptomes and the phylogenomics of green plants. Nature. 2019;574:679–685. doi: 10.1038/s41586-019-1693-2. PubMed DOI PMC

Brainerd E. Viola [Tourn.] L. In: Britton N.L., Brown A., editors. An Illustrated Flora of the Northern United States, Canada and the British Possessions: From Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian. Volume 2. C. Scribner’s Sons; New York, NY, USA: 1913. pp. 545–563.

Grey-Wilson C. Notes on African Violaceae. Kew Bull. 1981;36:103–126. doi: 10.2307/4119009. DOI

Morton J.K. Chromosome numbers and polyploidy in the flora of Cameroon Mountain. Opera Bot. 1993;121:159–172.

Gizaw A., Brochmann C., Nemomissa S., Wondimu T., Masao C.A., Tusiime F.M., Abdi A.A., Oxelman B., Popp M., Dimitrov D., et al. Colonization and diversification in the African ‘sky islands’: Insights from fossil-calibrated molecular dating of Lychnis (Caryophyllaceae) New Phytol. 2016;211:719–734. doi: 10.1111/nph.13937. PubMed DOI

Stebbins G.L., Harvey B.L., Cox E.L., Rutger J.N., Jelencovic G., Yagil E. Identification of the ancestry of an amphiploid Viola with the aid of paper chromatography. Am. J. Bot. 1963;50:830–839. doi: 10.1002/j.1537-2197.1963.tb10653.x. DOI

Fabijan D.M., Packer J.G., Denford K.E. The taxonomy of the Viola nuttallii complex. Can. J. Bot. 1987;65:2562–2580. doi: 10.1139/b87-347. DOI

Probatova N.S., Barkalov V.Y., Stepanov N.V. Chromosome numbers in some vascular plant species from Siberia and the Russian Far East. Bot. Pac. 2017;61:51–55. doi: 10.17581/bp.2017.06103. DOI

Melchior H., Cuatrecasas J. La Viola cazorlensis, su distribución, sistemática y biología. Cavanillesia. 1935;7:133–148.

Schmidt A. Zur systematischen Stellung von Viola chelmea Boiss. et Heldr. ssp. chelmea und V. delphinantha. Boiss. Ber. Deutsch. Bot. Ges. 1964;77:256–261.

Smith-White S. Cytological evolution in the Australian flora. Cold Spring Harb. Symp. Quant. Biol. 1959;24:273–289. doi: 10.1101/SQB.1959.024.01.026. PubMed DOI

Sun K., Wang C.-j. Notes on the Chinese Violaceae (II)—Cytological studies on some violets of China. Bull. Bot. Res. 1991;11:69–72.

Becker W. Violae Asiaticae et Australenses. II. Beih. Bot. Centralbl. Abt. 2. 1917;34:373–433.

Nieuwland J.A., Kaczmarek R.M. Studies in Viola. I. Proposed segregates of Viola. Am. Midl. Nat. 1914;3:207–217. doi: 10.2307/2992979. DOI

Słomka A., Godzik B., Szarek-Łukaszewska G., Shuka L., Hoef-Emden K., Bothe H. Albanian violets of the section Melanium, their morphological variability, genetic similarity and their adaptations to serpentine or chalk soils. J. Plant Physiol. 2015;174:110–123. doi: 10.1016/j.jplph.2014.09.010. PubMed DOI

Słomka A., Wolny E., Kuta E. Viola tricolor (Violaceae) is a karyologically unstable species. Plant Biosyst. 2014;148:602–608. doi: 10.1080/11263504.2013.788576. DOI

Scoppola A., Cardoni S., Marcussen T., Simeone M.C. Complex scenarios of reticulation, polyploidization, and species diversity within annual pansies of subsect. Bracteolatae (Viola sect. Melanium, Violaceae) in Italy: Insights from 5S-IGS high-throughput sequencing and plastid DNA variation. Plants. 2022;11:1294. PubMed PMC

Leitch I.J., Johnston E., Pellicer J., Hidalgo O., Bennett M.D. Angiosperm DNA C-Values Database, Release 9.0. 2019. [(accessed on 1 January 2022)]. Available online: https://cvalues.science.kew.org/

Clausen J. Cyto-genetic and taxonomic investigations on Melanium violets. Hereditas. 1931;15:219–308. doi: 10.1111/j.1601-5223.1931.tb02553.x. DOI

Erben M. The significance of hybridization on the forming of species in the genus Viola. Bocconea. 1996;5:113–118.

Clausen J., Channel R.B., Nur U. Viola rafinesquii, the only Melanium violet native to North America. Rhodora. 1964;66:32–46.

Shinners L.H. Viola rafinesquii: Nomenclature and native status. Rhodora. 1961;63:327–335.

Kartesz J.T., Gandhi K.N. Nomenclatural notes for the North American flora. III. Phytologia. 1990;69:129–137.

Casazza G., Grassi F., Zecca G., Minuto L. Phylogeographic insights into a peripheral refugium: The importance of cumulative effect of glaciation on the genetic structure of two endemic plants. PLoS ONE. 2016;11:e0166983. doi: 10.1371/journal.pone.0166983. PubMed DOI PMC

Roux J.P. Flora of South Africa. South African Biodiversity Institute (SANBI); Gauteng, South Africa: 2003. [(accessed on 1 January 2022)]. Available online: https://plants.jstor.org/collection/FLOSA.

Hooker J.D. The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843. Volume 2. Reeve Brothers; London, UK: 1844. p. 1.

Hair J.B., Beuzenberg E.J. Contributions to a chromosome atlas of the New Zealand flora—2. Miscellaneous families. N. Z. J. Sci. (Wellington) 1959;2:148–156.

Laing R.M., Blackwell E.W. Plants of New Zealand . Volume 1906 Whitcombe and Tombs, Ltd.; Christchurch, New Zealand : 1906.

Brainerd E. Some natural violet hybrids of North America. Bull. Vermont Agric. Exp. Sta. 1924;239:1–255.

Dakskobler I., Trnkoczy I. Viola sororia Willd. = V. cucullata auct.; non Aiton = Viola obliqua Hill. Hladnikia. 2010;25:53–55.

Maslo S., Sarajlić N., Kotrošan D. Viola sororia Willd. (Violaceae): New alien species in the flora of Bosnia and Herzegovina. Glas. Hrvat. Bot. Druš. 2018;6:20–24.

Wirth T., Kovács D., Csiky J. Contributions to the escaped, naturalised and potentially invasive species of the Hungarian adventive flora. Kitaibelia. 2020;25:111–156. doi: 10.17542/kit.25.111. DOI

Vitek E., Danihelka J., Adler W. Viola ×palmata (Violaceae) new for Austria and Europe. Ann. Naturhist. Mus. Wien B. 2012;113:264–265.

Taylor R.L., Mulligan G.A. Flora of the Queen Charlotte Islands. Part 2. Cytological Aspects of the Vascular Plants. Roger Duhamel, F.R.S.C.; Ottawa, ON, Canada: 1968.

Nishikawa T. Chromosome counts of flowering plants of Hokkaido (11) J. Hokkaido Univ. Educ. Sect. IIB. 1988;38:33–40.

Sokolovskaya A.P. [Geographical distribution of polyploidy in plants: Investigation of the flora of Sakhalin] Vestn. Leningr. Univ. Ser. Biol. 1960;4:42–58. (In Russian)

Sokolovskaya A.P. [Geographical distribution of polyploidy in plants: Investigation of the flora of the Kamchatka Peninsula] Vestn. Leningr. Univ. Ser. Biol. 1963;15:38–52. (In Russian)

Volkova S.A., Boyko E.V., Antusheva I.V. [Chromosome numbers of some species of Kamchatka and Sakhalin flora] Bot. Zhurnal. 2003;88:154–155. (In Russian)

Probatova N.S., Barkalov V.Y., Rudyka E.G. Caryology of the Flora of Sakhalin and the Kurile Islands: Chromosome Numbers, Taxononomic and Phytogeographical Comments. Dal’nauka; Vladivostok, Russia: 2007.

Baker M.S. Studies in western violets–III. Madroño. 1940;5:218–231.

Baker M.S. Studies in western violets–II. New species and varieties. Madroño. 1936;3:232–239.

Becker W., Hultén E. The genus Viola in Kamtchatka. Ark. Bot. 1929;22:1–8.

Carlquist S. In: Comparative Wood Anatomy: Systematic, Ecological, and Evolutionary Aspects of Dicotyledon Wood. 2nd ed. Timell T.E., editor. Springer; Berlin/Heidelberg, Germany: 2001. Springer Series in Wood Science.

Shaw K.L., Gillespie R.G. Comparative phylogeography of oceanic archipelagos: Hotspots for inferences of evolutionary process. Proc. Natl. Acad. Sci. USA. 2016;113:7986–7993. doi: 10.1073/pnas.1601078113. PubMed DOI PMC

Becker W.A., Ewart L.C. Pollination, seed set and pollen tube growth investigations in Viola pedata L. Acta Hortic. 1990;272:33–36. doi: 10.17660/ActaHortic.1990.272.3. DOI

Su X., Hou Y.-Y., Gao T., Wang Y.-L., Sun K. Taxonomic position of Viola tuberifera based on morphological variation of the populations and digital specimen. Bull. Bot. Res. 2018;38:189–194. doi: 10.7525/j.issn.1673-5102.2018.02.004. DOI

Zhou J.S., Xing F.W. Viola changii sp. nov. (Violaceae) from Guangdong, southern China. Nord. J. Bot. 2007;25:303–305. doi: 10.1111/j.0107-055X.2008.00198.x. DOI

Zhou J.S., Qin G., Xing F.W. Viola nanlingensis (Violaceae), a new species from Guangdong, southern China. Acta Bot. Fenn. 2008;45:233–236. doi: 10.5735/085.045.0312. DOI

Dong A.Q., Zhou J.S., Gong Q., Xing F.W. A new species of Viola (Violaceae) from Guangdong, China. Novon. 2009;19:457–470. doi: 10.3417/2007157. DOI

Huang Y.-S. ((Sun Yat-sen University, Guangzhou, China)). Personal communication. 2022.

Becker W. Violae Asiaticae et Australenses VI. Beih. Bot. Centralbl. Abt. 2. 1924;40:119–171.

Hu H.-H., Liu B., Liang Y.-S., Ye J.-F., Saqib S., Meng Z., Lu L.-M., Chen Z.-D. An updated Chinese vascular plant tree of life: Phylogenetic diversity hotspots revisited. J. Syst. Evol. 2020;58:663–672. doi: 10.1111/jse.12642. DOI

Nakamura K., Denda T., Kokubugata G., Huang C.-J., Peng C.-I., Yokota M. Phylogeny and biogeography of the Viola iwagawae-tashiroi species complex (Violaceae, section Plagiostigma) endemic to the Ryukyu Archipelago, Japan. Plant Syst. Evol. 2015;301:337–351. doi: 10.1007/s00606-014-1076-y. DOI

Russell N.H. The taxonomy of the North American acaulescent white violets. Am. Midl. Nat. 1955;54:481–494. doi: 10.2307/2422583. DOI

McKinney L.E., Russell N.H. Violaceae of the Southeastern United States. Castanea. 2002;67:369–379.

Little R.J., McKinney L.E. Violaceae Batsch. In: Flora of North America Editorial Committee, editor. Flora of North America North of Mexico. Volume 6. Oxford University Press; New York, NY, USA: Oxford, UK: 2016. [(accessed on 1 January 2022)]. Available online: http://www.efloras.org.

Aedo C., Gallo M.L. Sobre la pretendida subsp. “juressi” (Link. ex K. Wein) Coutinho de “Viola palustris” L. Anales Jard. Bot. Madrid. 1991;49:145–146.

Fernández Casado M.d.l.A., Nava Fernández H.S. Variabilidad morfológica de Viola palustris L. s.l. en Asturias y territorios limítrofes (norte de España) Bol. Ci. Naturaleza I. D. E. A. 2015;53:189–198.

Chen Y.S., Yang Q.E. Two new stoloniferous species of Viola (Violaceae) from China. Bot. J. Linn. Soc. 2009;159:349–356. doi: 10.1111/j.1095-8339.2008.00911.x. DOI

Becker W. Violae Asiaticae et Australenses. III. Beih. Bot. Centralbl. Abt. 2. 1918;36:15–59.

Bhellum B.L., Magotra R. Viola kouliana (Violaceae: Section Sclerosium), a new species from India. Nord. J. Bot. 2022:e03648. doi: 10.1111/njb.03648. in press. DOI

Gilbert M.G. Notes on Violaceae from Ethiopia. Nord. J. Bot. 1992;12:689–693. doi: 10.1111/j.1756-1051.1992.tb01848.x. DOI

Kroon D., Steens T., Troelstra S.R. Onset of monsoonal related upwelling in the western Arabian sea as revealed by planktonic foraminifers. Proc. Ocean Drill. Program Sci. Results. 1991;117:257–263. doi: 10.2973/odp.proc.sr.117.126.1991. DOI

Prell W.L., Kutzbach J.E. Sensitivity of the Indian monsoon to forcing parameters and implications for its evolution. Nature. 1992;360:647–652. doi: 10.1038/360647a0. DOI

Kausel E. Lista de las Mirtaceas y Leptospermaceas Argentinas. Lilloa. 1966;32:323–368.

Nikitin V.V. Violaceae. In: Tzvelev N.N., editor. Flora Europae orientalis/Flora vostochnoj Evropy: Magnoliopsida. Volume 9. Nauka; St. Petersburg, Russia: 1996. pp. 180–205.

Moore D.M., Harvey M.J. Cytogenetic relationships of Viola lactea Sm. and other West European arosulate species. New Phytol. 1961;60:85–95.

Eckstein R., O’Neill R., Danihelka J., Otte A., Kohler W. Genetic structure among and within peripheral and central populations of three endangered floodplain violets. Mol. Ecol. 2006;15:2367–2379. doi: 10.1111/j.1365-294X.2006.02944.x. PubMed DOI

Eckstein R.L., Hölzel N., Danihelka J. Biological Flora of Central Europe: Viola elatior, V. pumila, and V. stagnina. Perspect. Plant Ecol. Evol. Syst. 2006;8:45–66. doi: 10.1016/j.ppees.2006.01.001. DOI

Peng C.-I. Digital Flora of Taiwan. [(accessed on 1 January 2022)]. Available online: http://www.efloras.org.

Greuter W., Rechinger K.H. Flora der Insel Kythera: Gleichzeitig Beginn einer Nomenklatorischen Überprüfung der Griechischen Gefässpflanzenarten. Boissiera; Mémoires de Botanique Systématique: 1967. pp. 1–206. DOI

POWO Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet. [(accessed on 8 July 2021)]. Available online: http://www.plantsoftheworldonline.org/

African Plant Database, Version 3.4.0. Conservatoire et Jardin botaniques de la Ville de Genève and South African National Biodiversity Institute; Pretoria, South Africa: 2022. [(accessed on 1 January 2022)]. Available online: https://africanplantdatabase.ch.

Zuev V.V. Semejstvo Violaceae—Fialkovye [Family Violaceae] In: Peschkova G.A., editor. Flora Sibiri [Flora of Siberia] Volume 10. Nauka; Novosibirsk, Russia: 1996. pp. 83–101. (In Russian)

Baikov K.S. Conspectus Florae Sibiriae. Plantae Vasculares. Nauka; Novosibirsk, Russia: 2005. pp. 1–361. (In Russian)

Bezdeleva T.A. Fialkovye—Violaceae Batsch. In: Charkevicz S.S., editor. Plantae Vasculares Extremi Orienti Sovietici/Sosudistye Rastenija Sovetskogo Dal’nego Vostoka. Volume 2. Nauka; Leningrad, Russia: 1987. pp. 93–131. (In Russian)

Nikitin V.V. Violaceae Batsch, nom. cons. In: Takhtajan A.L., editor. Caucasian Flora Conspectus. Volume 3. KMK Scientific Press; Saint-Peterburg & Moscow, Russia: 2012. pp. 338–349. (In Russian)

Tison J.-M., Foucalt B. Flora Gallica: Flore de France. Biotope Éditions; Mèze, France: 2014.

Raab-Straube E.V., Henning T. Violaceae. In Euro+Med Plantbase—the Information Resource for Euro-Mediterranean Plant Diversity. [(accessed on 15 August 2021)]. Available online: https://www.europlusmed.org/

Ballard H.E. Violets (Violaceae) of the Great Plains and Eastern North America. [(accessed on 1 January 2022)]. Available online: https://people.ohio.edu/ballardh/vgpena.

Sanso A.M., Xifreda C.C., Seo M.N. Viola L. In: Zuloaga F.O., Morrone O., Belgrano M.J., editors. Catálogo de las plantas vasculares del Cono Sur (Argentina, Sur de Brasil, Chile, Paraguay y Uruguay). Dicotyledoneae: Fabaceae (Senna-Zygia)–Zygophyllaceae 3. Monographs in Systematic Botany from the Missouri Botanical Garden. Volume 107. Missouri Botanical Garden Press; St. Louis, MO, USA: 2008. pp. 3158–3169.

Ballard H.E., Wujek D.E. Evidence for the recognition of Viola appalachiensis. Syst. Bot. 1994;19:523–538. doi: 10.2307/2419775. DOI

Rice A., Glick L., Abadi S., Einhorn M., Kopelman N.M., Salman-Minkov A., Mayzel J., Chay O., Mayrose I. The Chromosome Counts Database (CCDB)—A community resource of plant chromosome numbers. New Phytol. 2015;206:19–26. doi: 10.1111/nph.13191. PubMed DOI

GBIF: The Global Biodiversity Information Facility. What Is GBIF? [(accessed on 13 December 2021)]. Available online: https://www.gbif.org/what-is-gbif.

R Core Team . R: A Language and Environment for Statistical Computing. R Core Team; Vienna, Austria: 2022. [(accessed on 12 February 2022)]. Available online: https://www.R-project.org/

Chamberlain S.A., Boettiger C. R Python, and Ruby clients for GBIF species occurrence data. PeerJ Preprints. 2017;5:e3304v1. doi: 10.7287/peerj.preprints.3304v1. DOI

Wickham H., Averick M., Bryan J., Chang W., McGowan L.D.A., François R., Grolemund G., Hayes A., Henry L., Hester J., et al. Welcome to the tidyverse. J. Open Source Softw. 2019;4:1686. doi: 10.21105/joss.01686. DOI

Hijmans R.J., Etten J.V., Raster: Geographic Analysis and Modeling with Raster Data R Package Version 2.0-12. 2012. [(accessed on 12 December 2021)]. Available online: http://CRAN.R-project.org/package=raster.

Töpel M., Zizka A., Calió M.F., Scharn R., Silvestro D., Antonelli A. SpeciesGeoCoder: Fast categorization of species occurrences for analyses of biodiversity, biogeography, ecology, and evolution. Syst. Biol. 2016;66:145–151. doi: 10.1093/sysbio/syw064. PubMed DOI PMC

Bivand R., Lewin-Koh N., Pebesma E., Archer E., Baddeley A., Bearman N., Bibiko H.-J., Brey S., Callahan J., Carrillo G. Maptools: Tools for Handling Spatial Objects. R Package, Version 0.9. 2019. [(accessed on 8 November 2021)]. Available online: https://cran.r-project.org/web/packages/maptools/index.html.

Keitt T.H., Bivand R., Pebesma E., Rowlingson B., Rgdal: Bindings for the Geospatial Data Abstraction Library R Package, Version 0.6-27. 2010. [(accessed on 13 December 2021)]. Available online: https://cran.r-project.org/web/packages/rgdal/index.html.

Cooper N. Package ‘Reader’: Suite of Functions to Flexibly Read Data from Files. 2017. [(accessed on 16 June 2017)]. Available online: https://CRAN.R-project.org/package=reader.

Larsson A. AliView: A fast and lightweight alignment viewer and editor for large data sets. Bioinformatics. 2014;30:3276–3278. doi: 10.1093/bioinformatics/btu531. PubMed DOI PMC

Simmons M.P., Ochoterena H. Gaps as characters in sequence-based phylogenetic analyses. Syst. Biol. 2000;49:369–381. doi: 10.1093/sysbio/49.2.369. PubMed DOI

Müller K. SeqState—Primer design and sequence statistics for phylogenetic DNA data sets. Appl. Bioinform. 2005;4:65–69. PubMed

Drummond A.J., Suchard M.A., Xie D., Rambaut A. Bayesian phylogenetics with BEAUti and the BEAST 1.7. Mol. Biol. Evol. 2012;29:1969–1973. doi: 10.1093/molbev/mss075. PubMed DOI PMC

Rambaut A., Drummond A.J. Tracer v1.5. 2009. [(accessed on 10 October 2018)]. Available online: http://beast.bio.ed.ac.uk/Tracer.

Rambaut A. FigTree v1.4. 2012. [(accessed on 6 December 2018)]. Available online: http://tree.bio.ed.ac.uk/software/figtree/

Huber K.T., Oxelman B., Lott M., Moulton V. Reconstructing the evolutionary history of polyploids from multilabeled trees. Mol. Biol. Evol. 2006;23:1784–1791. doi: 10.1093/molbev/msl045. PubMed DOI

Revell L.J. phytools: An R package for phylogenetic comparative biology (and other things) Methods Ecol. Evol. 2012;3:217–223. doi: 10.1111/j.2041-210X.2011.00169.x. DOI

Havran J.C., Oppenheimer H., Keaton J., Piotrowski K. Interisland range expansion of Viola lanaiensis (Violaceae: Malpighiales), an endangered Hawaiian violet. Pac. Sci. 2012;66:447–456. doi: 10.2984/66.4.3. DOI

Havran J.C., Harbin S.C., Portner T. Viola kauaensis var. hosakae (Violaceae), a new variety of endemic Hawaiian violet. PhytoKeys. 2014;39:35–48. doi: 10.3897/phytokeys.39.6500. PubMed DOI PMC

Hall T.A. BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symp. Ser. 1999;41:95–98.

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