Schismatoglottis venusta

Wong, Sin Yeng & Joling, Jyloerica, 2021, Checklist of aroids (Alismatales, Araceae) from Sabah (Malaysian Borneo), Check List 17 (3), pp. 931-974 : 967

Schismatoglottis venusta A.Hay

Material examined. MALAYSIA – Sandakan • Kinabatangan, Gomantong hill, bottom of Libingpayu hole; 05°31′52″N, 118°04′17″E; 15.24 m (50 ft.) elev.; 21 July 1954; G. H. S. Wood A 4602A ( SAN) • same locality; 15.24 m (50 ft.) elev.; 27 September 1948; Austin Cuadra A 1490 ( SAN) • same locality; 21 June 1992; W. Meijer SAN 136165 ( SAN) • same locality; 21 June 1992; W. Meijer SAN 136168 ( SAN) • same locality; 300 m elev.; 24 April 1996; A. Hay 12167 ( SAN) • Kinabatangan, Gomantong Forest Reserve, Dulong lambu limestone massif, Gomantong limestone hill, Simud Hitam Cave ; 05°31′22″N, 118°03′50″E; 50 m elev.; 21 May 1996; S. P. Lim 605 ( SAN) – Tawau • Lahad Datu, Madai Caves, cultivated at glasshouse at Royal Botanic Gardens Sydney ; 04°43′45″N, 118°08′00″E; 400 m elev.; 25 April 1996, A. Hay 12179 ( SAN) .

Identification. This species is clearly allied to S. calyptrata , sharing the hapaxanthic modules, sagittate leaf blade, caducous spathe limb and hourglass- shaped spadix with partially adnate female zone. It differs in the very dark green somewhat coriaceous (almost subsucculent) leaves, lithophytic habit, larger pistils, shorter and wider interpistillar staminodes and the shortly cylindric appendix ( Hay and Yuzammi 2000).

Distribution and ecology. Endemic to Sabah. Northeastern and eastern Sabah. Lithophytic on limestone (occasional on nearby forest floor) in mixed dipterocarp forest, ca. 50–400 m elev.