Begonia arunachalensis (Begoniaceae), a new tuberous species of Begonia from Arunachal Pradesh, India

Abstract

A new species, Begonia arunachalensis D.Borah & Wahlsteen (Begoniaceae) is described and illustrated. It is distributed in Papum Pare District of Arunachal Pradesh where it grows near streams in rock crevices. Begonia arunachalensis is similar to B. brevicaulis A.DC. but differs in its pendent fruits, number of locules and capsule wings, and longer lateral wings. It belongs to Begonia sect. Diploclinium.