NOTES ON THE DISTRIBUTION AND SEXUAL POLYMORPHISM OF SAUSSUREA CONTROVERSA AND S. STUBENDORFFII (ASTERACEAE)
Elizaveta A. Pyak, Daniil V. Yusupovsky, Andrei I. Pyak
National Research Tomsk State University, Tomsk, Russia
Keywords: Asteraceae, Saussurea, gynomonoecy, gynodioecy, new records, sexual polymorphism, Tomsk Region of Russia, China
Abstract
Distribution of two species of the type section of the genus Saussurea DC. was clarified. S. controversa DC. is reported here for the first time for the flora of China, S. stubendorffii Herd. is new for the Tomsk Region of Russia. For the first time, gynodioecy-gynomonoecy sexual system was described for these species, and it was found that in natural populations of S. controversa and S. stubendorffii female, hermaphroditic and gynomonoecious plants, bearing both types of flowers, are present.
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