Two new combinations in Oreocharis (Gesneriaceae) based on morphological, molecular and cytological evidence

Abstract

The newly-circumscribed genus <i>Oreocharis</i> is recently enlarged by incorporating ten other genera with high floral diversity. In this study, our morphological, molecular and cytological evidence supports our adding two species from other two different genera (<i>Boeica</i> and <i>Beccarinda</i>) to <i>Oreocharis</i>. The special corolla shape (campanulate or flat-faced) and related short filament of these two new combinations, <i>Oreocharis guileana</i> and <i>O. baolianis</i>, further enrich the diversity of floral characters of the enlarged <i>Oreocharis</i>. Meanwhile, some supplementary and amended descriptions of these two species are made here. Our morphological, molecular and geographical data indicate that <i>O. guileana</i> is related to <i>O. pilosopetiolata</i> to a certain extent. For <i>O. baolianis</i>, however, our current dataset does not allow conclusions on the species relationship within <i>Oreocharis</i>.