Ranunculus ailaoshanicus W. T. Wang, a new species of Ranunculaceae from Yunnan, China

Abstract

Ranunculus ailaoshanicus W. T. Wang,a new species of the Ranunculaceae from Yunnan,China,is described and illustrated. This species in habit shows striking resemblance to Ranunculus dongrergensis Hand.-Mazz.,and differs from the latter in its lower leafless scapes,smaller flowers,and smaller,oblong-elliptic petals with obscure nerves. In R. dongrergensis,the stems are 5–15 cm tall and bear cauline leaves,the flowers are larger,1–1.8 cm in diam.,and the petals are larger,obovate in outline,4–9 mm long,2.2–7 mm broad,and nervose.