A new species of Eustigma (Hamamelidaceae) from Hon Ba Nature Reserve Vietnam

摘要

A new species of Hamamelidaceae, Eustigma honbaense H.Toyama, Tagane & V.S.Dang, >sp. nov., is described from Hon Ba Nature Reserve, Vietnam. This species is similar to Eustigma oblongifolium Gardner & Champ., but differs from it in having entire leaves, longer infructescences, capsules with a longer apical part and seeds with a larger hilum. A description, preliminary conservation assessment, illustration and photographs of the new species are provided, as well as an updated key to the genus Eustigma.