A new species of Amorphophallus (Araceae) from northeastern Thailand

By

Promprom, Wilawan
Chatan, Wannachai
Pasorn, Pattana
Prasertsri, Narueset
Angkahad, Thinnakon

Type

Article

Date of Publication

2023

Original Publication

PhytoKeys

Volume

229

Pages

131--138

Subjects

Amorphophallus sakonnakhonensis , Araceae , aroid , Plant Diversity , plant taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.229.106466

 

Abstract

Amorphophallus sakonnakhonensis Chatan & Promprom, a new species from northeastern Thailand, is described and illustrated. The new species is most similar to A. harmandii Engl. & Gehrm. and A. linearis Gagnep., but it is distinguished by the combination of characters as follows: clear differences with A. harmandii are shorter style; disc-like, slightly smooth surface, concave centre, ca. 0.2 × 0.1 mm stigma; slightly cylindrical, slightly narrower upper part of staminate flower zone; slightly cylindrical to elongate-fusiform, erect or slightly erect, creamy white appendix. The clearly distinct morphology with A. linearis are disc-like, slightly smooth surface, concave centre, ca. 0.2 × 0.1 mm stigma; elliptic or obovate leaflet; 1–3 cm long, creamy white appendix. The preliminary conservation status was assessed, and the distinct characteristics of similar species were discussed.