New combinations in Pseudognaphalium (Gnaphalieae-Asteraceae) of Mexico

Abstract

In a broad sense, Gnaphalium L. is a heterogeneous and polyphyletic genus. Pseudognaphalium Kirp. is one of the many segregated genera from Gnaphalium which have been proposed to obtain subgroups that are better defined and presumably monophyletic. Although most Mexican species of Gnaphalium s.l. have been transferred to Pseudognaphalium, the combinations so far proposed do not include a few Mexican taxa that truly belong in Pseudognaphalium. In this paper, the differences between Gnaphalium s.s. and Pseudognaphalium are briefly addressed, and the transfer of two Mexican species and three varieties from Gnaphalium to Pseudognaphalium are presented.