Checklist of aroids (Alismatales, Araceae) from Sabah (Malaysian Borneo) Author Wong, Sin Yeng Author Joling, Jyloerica text Check List 2021 2021-06-17 17 3 931 974 http://dx.doi.org/10.15560/17.3.931 journal article 10.15560/17.3.931 1809-127X Pothos ovatifolius Engl. Figure 5G Material examined. MALAYSIA – Pantai Barat • Tambunan Distr., road to Kg Tondulu, Kg Tondulu valley; Boyce 1422 (K) • Tambunan Distr., Kg Kangeran road, Bt. Lapan, 1.5 hours by car from Kg Kangeran; Boyce 1423 (K). Identification. This species belongs to the Allopothos supergroup ( Boyce and Hay 2001 ) and can be distinguished by its leaf blade stiffly chartaceous to coriaceous, (3–)8.5–27 × (2.5–) 7–27 cm , spreading, oblong ovate to very broadly ovate, oblique, sometimes profoundly so, base broadly rounded to narrowly cordate. Distribution and ecology. Found in small, scattered populations in wet river valleys in Sabah . This species is not common in northern Borneo. Primary to degraded secondary lowland to lower montane forest, 70–1400 m elev.