Lejeunea convexiloba M.L.So & R.L.Zhu

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 : 257

* Lejeunea convexiloba M.L.So & R.L.Zhu

( Fig. 13 )

The Bryologist 101 (1): 137 (1998).

SPECIMEN EXAMINED. — Malaysia. Sabah: Mt. Kinabalu: Paka Cave, along the trail between Villosa shelter and Laban Rata resthouse, on tree trunk, at 2900 m alt., 13.XI.2010, G.E. Lee 1940.

REMARKS

The distinguishing characters of Lejeunea convexiloba include 1) the autoicous plant; 2) the relatively large (to ½ the length of leaf lobe) leaf lobules with flat free margin; 3) cross-section of stem with less than 10, usually 5-6 medullary cells; 4) the indistinct trigones and absence of intermediate thickenings; 5) the distantly arranged and orbicular underleaves; 6) the rough cuticle with finely punctate to verrucose-small papillae; and 7) the 5-keeled, obovoid perianth with 2 long ventral

Figures

FIG. 13. — Lejeunea convexiloba M.L.So & R.L.Zhu: A, B, underleaves; C, part of plant and perianth in ventral view; D, E, leaves; F, G, upper part of leaf lobules when flattened (hyaline papilla shown in gray); H, perianth; I, median leaf lobe cells; J, cross-section of stem; K, female bracts and bracteole. From G.E. Lee 1940. Scale bars: A, B, D, E, 0.1 mm; C, H, K, 0.2 mm; F, G, I, J, 50 µm.