Amorphophallus ravenii, a New Species of Amorphophallus (Araceae) from Laos

Nguyen Van Du; T. V. Tien; L. T. Loan; S. Bouamanivon; W. L. A. Hetterscheid

Nguyen Van Du Vietnam Academy of Science and Technology
T. V. Tien National Academy of Public Administration
L. T. Loan Plant Resource Centre–Vietnam Academy of Agricultural Sciences
S. Bouamanivon Ministry of Science and Technology of Laos
W. L. A. Hetterscheid Von Gimborn Arboretum

Keywords: Amorphophallus, Araceae, IUCN Red List, Laos

Abstract

Amorphophallus ravenii V. D. Nguyen & Hett., a new species of Araceae, is described from material collected in Vang Vieng District, Vientiane Province, Laos. This species is similar to A. khammouanensis A. Galloway and A. croatii Hett. & A. Galloway, but differs by having an appendix about half the length of the male zone, stigmas about 1.5 times as broad, unwinged rachises of the decompound leaf blade, and a subglobose tuber.