A synopsis of Goniothalamus species (Annonaceae) in Peninsular Malaysia, with a description of a new species

Abstract

The species of Goniothalamus (Annonaceae) occurring in Peninsular Malaysia and Singapore are revised, updating the previous taxonomic treatment by James Sinclair, published in 1955. A total of 18 species is recognized, including a new species, G. tomentosus. Collections referrable to G. tomentosus were previously determined as 'G. marcanii'; examination of the types of G. marcanii reveals that the two taxa are not conspecific, however, and a new name is accordingly validated here. Goniothalamus tomentosus has closest affinities with the Javan/Sumatran species G. costulatus. Other important nomenclatural changes include the reduction of G. umbrosus to synonymy with G. tapis. © 2003 The Linnean Society of London.