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Radula grandilobula Promma & Chantanaorr. (Figs 11E, F; 14) Cryptogamie, Bryologie 36 (3): 219 (2015). SPECIMEN EXAMINED. — Malaysia. Terengganu: Mt. Tebu Forest Reserve, 15 km S of Jerteh town. Primary lowland dipterocarp forest with small waterfalls and slow stream. Along the forest trail at the Lata Belatan Recreational Forest and waterfall, situated at the base of Mt. Tebu at 100 m alt., on living leaves, 16.IV.2019, G.E. Lee et al. 19022, 19023, 19024, 19025, ibid., 13.III.2021, G.E. Lee 21001, 21002, 21003, 21004. REMARKS Radula grandilobula is close to the widespread Indopacific R. acuminata (Zhu & So 2001); differs in having triangularovate leaf lobes, frequently recurved free margin of leaf lobules, the leaf lobule apices pointing towards the leaf lobe apices or directed away from the stem, and the finely segmented oil bodies, 2-4 per cell (Promma & Chantanaorrapint 2015). Radula grandilobula was first described in Nakhon Si Thammarat, southern Thailand (Promma & Chantanaorrapint 2015), and its occurrence in northern Malaysia was therefore expected. New to Peninsular Malaysia (Terengganu). The species has exclusively been found on living leaves. |
