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12 May 2020
Identity of the Calcarata species complex in Viola sect. Melanium (Violaceae)
Sandra Krause,
Joachim W. Kadereit
![](/ContentImages/journals/will/50/2/2/WebImages/101.050.0200.cover.jpg)
Willdenowia
Vol. 50 • No. 2
Aug 2020
Vol. 50 • No. 2
Aug 2020
Calcarata species complex
ETS
hybrid speciation
hybridization
ITS
trnS–trnG
Viola