Rhaphidophora lobbii Schott

Wong, Sin Yeng & Joling, Jyloerica, 2021, Checklist of aroids (Alismatales, Araceae) from Sabah (Malaysian Borneo), Check List 17 (3), pp. 931-974 : 959-960

Rhaphidophora lobbii Schott

Material examined. MALAYSIA – Pantai Barat • Ranau, Ulu Tungud Forest reserve, Gunung Monkobo expedition, Sungai Kiberibi ; 05°50′57″N, 116°59′17″E; 324 m elev.; 23 July 2005; Saw L. G. et al. SAN 146651 ( KEP, SAN, SAR) – Sandakan • Kinabatangan, Kampung Pangkaian, Tamegang Timber Camp near Kpg. Pangkaian ; [05°25′22″N, 118°14′19″E]; 22 November 1968; Kokawa & Hotta 1417 (L) • Kinabatangan, Pin- Supu Forest Reserve, Batu Puteh , Supu Hill ; 05°25′14″N, 117°56′25″E; 13 June 1996; S. P. Lim 766 ( SAN) • Sandakan, below waterfall Kebun Cina Forest Research centre; 05°50′46″N, 118°05′08″E; 20 December 1990; W. Meijer & Dewol S. SAN 131749 ( SAN) • Sandakan, Labuk Road ; [05°50′13″N; 118°06′53″E]; 182.88 m (600 ft.) elev.; 26 August 1963; W. Meijer SAN 38784 ( SAN) • Sandakan, Sepilok Forest Reserve ; 05°49′36″N, 117°57′04″E; 24 May 1982; Amin G. SAN 94588 ( SAN) • Sandakan, Sungai Dagat , lowland forest; 05°24′42″N, 118°47′42″E; 17 July 1987; George et al. SAN 120521 ( SAN) • Sandakan, Sapi Virgin Forest Reserve ; 05°49′30″N, 117°25′30″E; 25 June 2007; Pius G. et al. SAN 148862 ( SAN) .

Identification. Rhaphidophora lobbii have combination of characters unknown in any other Malesian

Rhaphidophora , the slender, asperous stems, softly leathery leaves and minutely puberulent spathe exterior. In dry material the leaves discolorous strongly and the primary veins prominently darker than the abaxial leaf surface (Boyce 2001).

Distribution and ecology. Northwestern and northeastern Sabah. Primary to disturbed secondary lowland dipterocarp and peatswamp forest on wet to inundated soils, 250 m elev.