Ceratolejeunea minor Mizut.

Sarimi, Muhammad Syafiq, Pócs, Tamás & Lee, Gaik Ee, 2021, Data to the Malaysian liverwort flora, III: New Lejeuneaceae records from Sabah and Peninsular Malaysia, Cryptogamie, Bryologie 20 (19), pp. 249-267 : 250

Ceratolejeunea minor Mizut.

( Fig. 2 )

Journal of the Hattori Botanical Laboratory 49: 311 (1981).

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. 19013, 19014, ibid, E. Pesiu et al. 19157, 19182.

REMARKS

This species is recognized by the weakly keeled perianth without horn-like projections, the small, distant underleaves, and the obovate perianth. Previously known from the type in Sabah, Mt. Templer ( Mizutani 1981) and subsequently reported from China ( Zhu et al. 2005). New to Peninsular Malaysia (Terengganu). The specimens from Terengganu are similar to the Chinese material in the entire margins of underleaf lobes and the absence of weak Allorgella -typed denticulations in the margins of leaf lobes; in the type of Sabah the underleaf lobes have 1-2 marginal teeth and the margin denticulation is distinct. This species grows on sandstone, tree trunks or living leaves (this study) in the understorey and canopy of lowland and montane rainforests at an elevation of 100-1000 m ( Mizutani 1981; Zhu et al. 2005).

Figures

FIG. 2. — Ceratolejeunea minor Mizut.: A, part of plant in ventral view; B, C, leaves; D, upper part of leaf lobule when flattened (hyaline papilla shown in gray); E, marginal leaf lobe cells; F, G, underleaves; H, cross-section of stem; I, median leaf lobe cells; J, basal leaf lobe cells and ocelli. From E. Pesiu et al. 19157. Scale bars: A, 0.2 mm; B-C, 0.5 mm; F, G, 0.1 mm; D, E, H-J, 50 µm.