Ceratolejeunea singapurensis (Lindb.) Schiffn.

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 singapurensis (Lindb.) Schiffn.

( Fig. 3 )

Conspectus Hepaticarum Archipelagi Indici 273 (1898).

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. 19012.

REMARKS

The distinctive features are the presence of 1-6 basal ocelli, the approximate to distantly arranged and orbicular underleaves, the entire leaf margin, the absence of utricles, and the oblong leaf lobe with rounded apices. Only known from the type in Singapore and from India ( Mizutani 1981; Udar & Shaheen 1985) and in Sabah, Malaysia ( Herzog 1952). New to Peninsular Malaysia (Terengganu).

Figures

FIG. 3. — Ceratolejeunea singapurensis (Lindb.) Schiffn.:A, part of plant in ventral view; B, C, leaves; D, E, upper part of leaf lobule when flattened (hyaline papilla shown in gray); F, H, I, underleaves; G, cross-section of stem; J, K, basal leaf lobe cells and ocelli. From G.E. Lee et al. 19012. Scale bars: A-C, 0.2 mm; D, E, G, 50 µm; F, H-J, K 100 µm.