Notes on the identity of Calamus pseudorivalis Becc. (Arecaceae) with a new species of the genus from Andamans

Abstract

Calamus Pseudorivalis Becc. was originally reported from Nicobar islands based on a fruiting specimen. Later on, Parkinson discribed the vegetative features of the species based on collections from Andaman islands. A detailed study of the rattan flora of Andaman and Nicobar islands has proved that the Nicobar and the Andaman materials are not conspecific. In this paper the two species are separated and the species collected from Andamans is described as a new one.