Epipterygium yunnanense Hanusch, 2020

Hanusch, Maximilian, Ortiz, Edgardo M., Patiño, Jairo & Schaefer, Hanno, 2020, Biogeography and integrative taxonomy of Epipterygium (Mniaceae, Bryophyta), TAXON 69 (6), pp. 1150-1171 : 1162

Epipterygium yunnanense Hanusch , sp. nov. –

Holotype: CHINA. Yunnan Province, Tengchong Xian, Longchuan Jiang valley along roads from Qushi to Tengchong, west branch of Longchuan Jiang at Xiangyangqiao bridge; 25 Ǫ 12′42′′N, 98 Ǫ 34′48′′E, altitude ca. 1471 m, wooded slopes above river with Alnus nepalensis and scrub, on soil on shady roadside rocks, 25 Oct 2003, D.G. Long s.n. (E barcode E00576940! ).

Diagnosis. – A large Epipterygium species with stems ranging between 7 and 9 mm in size. Dull, bluish-green or sometimes pink plants. Dorsal and ventral leaves scarcely dimorphic, dorsal leaves 1.6–2.1 mm long, ovate, acute to cuspidate, entire, non-serrate. Costa ending at half of lamina. Perichaetial leaves serrate to about half of the length, acute. Dorsal leave median cells 110–125 μm long, 25–40 μm wide, rhomboidal; 4–8 rows of linear marginal cells forming a very distinct border. Illustrated in Fig. 8 .

Distribution. – Asia. China, Yunnan.

Figures

Fig. 8. Epipterygium yunnanense sp. nov. A, Habitus; B, Perichaetial leaf; C, Perichaetial leaf apex; D, Marginal cells of dorsal leaf.