Amorphophallus rugosus Hett. & A.L.Lamb Figure 3C Material examined. MALAYSIA – Pedalaman • Tambunan / Keningan District-boundary, Ulu Apin Apin, in colluvial soil, on slope of sanstone ridge, cool shaded habitat; ca. 700 m elev.; i-1993; Lamb & Surat ALFS 625 (holo L). Identification. Amorphophallus rugosus is morphologically similar to A. costatus but can be differentiated by the much longer peduncle and larger proportions in general (Hetterscheid 1994). Distribution and ecology. Endemic to Sabah. Known only from the type collection from Ulu Apin Apin, Tambunan-Keningau. Amorphophallus rugosus can be found growing in traditional orchards, rubber farms, secondary and mixed dipterocarp forest. In colluvial soil, on slope of sandstone ridge, cool shaded habitat, ca. 700 m. elev.

Published as part of Wong, Sin Yeng & Joling, Jyloerica, 2021, Checklist of aroids (Alismatales, Araceae) from Sabah (Malaysian Borneo), pp. 931-974 in Check List 17 (3) on page 945, DOI: 10.15560/17.3.931

{"references": ["Hetterscheid WLA (1994) Notes on the genus Amorphophallus (Araceae) 2: new species from tropical Asia. Blumea 39: 237 - 281."]}