Rhaphidophora puberula Engl.

Wong, Sin Yeng & Joling, Jyloerica, 2021, Checklist of aroids (Alismatales, Araceae) from Sabah (Malaysian Borneo), Check List 17 (3), pp. 931-974 : 960

Rhaphidophora puberula Engl.

Material examined. MALAYSIA – Pedalaman • Keningau, Sungai Labou ; 05°22′09″N, 116°29′32″E; 4 June 1985; Asik Mantor SAN 110980 ( SAN) • Kunak, Madai, Madai Caves , Madai Baturong Forest Reserve ; [04°43′45″N, 118°08′00″E], 100 m elev.; 14 November 1968, Kokawa & Hotta 1097 (L) • Pensiangan, Pandewan, Sungai Mesopo , along the riverside; 04°51′31″N, 116°34′48″E; 18 February 1986; Fidilis & Sumbing SAN 113389 ( SAN) • Pensiangan, Pensiangan Utara, Kampung Batu , Bukit Pun Batu ; 04°47′30″N, 116°11′33″E; 24 Octo - ber 1996; S. P. Lim 1501 ( SAN) – Pantai Barat • Penampang, Sugud Recreation Park ; 05°50′13″N, 116°06′48″E; 365.76 m (1200 ft.) 29 August 1993; Madani, L. SAN 134070 (L) • Ranau, Mount Kinabalu , along road to summit; 06°04′N, 116°27′E; 2000-2300 m elev.; 27 Septem- ber 1981; T. B. Croat 53131 ( SAR, MO) • Ranau, Mount Kinabalu, Dallas ; [06°5′30″N, 116°32′45″E]; 914.4 m (3000 ft.) elev.; 16 September 1931; Clemens & Clemens 26453 (L) • same locality; 27 October 1931; Clemens & Clemens 26876 (L) • same locality; 1371 m elev.; 27 March 1932; Clemens & Clemens 26900 (L) • Ranau, Nalumad, Monkodou River ; 06°06′02″N, 116°44′29″E; 19 July 1994; W. Meijer SAN 141633 ( SAN) – Sandakan • Kinabatangan, Kampung Pangkaian, Tamegang Timber Camp ; 05°25′22″N, 118°14′19″E; 22 November 1968; Kokawa & Hotta 1416 (L) • Kinabatangan, Lamag, Ulu Sungai Pin , growing on huge rock; 05°23′28″N, 117°52′48″E; 18 September 1979; Leopold M. & F. Saigol SAN 90180 ( SAN) • Sandakan , Sungai Batang off Sungai

Manila Road ; 05°55′18″N, 117°58′27″E; 15 March 1965; W. Meijer & Kodoh SAN 49805 ( SAN) • Tongod, Maliau Valley, Belian Camp ; 4°50′56″N, 116°50′28″E; 250 m elev.; 16 July 2001; Postar, Ubaldus, de Wilde et al. SAN 144149 (K, KEP, L, SAR) – Tawau • Kalabakan, Luasong Camp, KM 41 Imbak Road ; 04°37′00″N, 117°24′18″E; 22 February 1983; Fedilis K. SAN 95680 ( SAN) • Lahad Datu, Segama, Borneo Marble Quarry ; 04°58′42″N, 118°13′46″E; 27 August 1999; Diwol Sun- daling et al. SAN 141862 ( SAN, SING) • Lahad Datu, Sungai Tabin Wildlife Centre ; 05°14′30″N, 118°50′16″E; 11 August 1991; L. Madani SAN 132607 ( SAN) • Tawau, Elpinstone province ; [04°30′34″N, 117°33′13″E′]; 26 March 1929; A. D. E. Elmer 21593 (L) • Tawau, Sabah Foundation Logging Area, Umas-Umas ; [04°27′09″N, 117°42′27″E]; 8 July 1977; Fedilis. K. SAN 87213 ( SAN) .

Identification. Rhaphidophora puberula resembles R. foraminifera (Engl.) Engl. , especially in the perforateleaf forms and can be differentiated from R. foraminifera from its inflorescence on free lateral shoots and in hav- ing the active shoot tips without the characteristic black mucilage of R. foraminifera . Generally, flowering plants of the perforate-leaved forms of R. puberula have smaller leaves that are noticeably less perforated than those of R. foraminifera (Boyce 2001) .

Distribution and ecology. Nortwestern, southwestern, and northwestern Sabah. On trees and rocks in primary and secondary lowland to lower upper montane transition forest, often on steep slopes, on granite and limestone. 90–1550 m elev.