Biosystematics of the Genus Douglasdeweya
摘要
The genus Douglasdeweya C. Yen, J. L. Yang et B. R. Baum was distinguished as a separate genus with Douglasdeweya wangii C. Yen, J. L. Yang & B. R. Baum as the type species. Some allotetraploids with the StP genomic constitutions in traditional Pseudoroegneria were transferred into the genus Douglasdeweya. Two species that restrictedly distributed in the Caucasus, Douglasdeweya wangii and Douglasdeweya deweyi, were described in the genus.