Epipterygium biauritum 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 : 1161

Epipterygium biauritum Hanusch , sp. nov. –

Holotype: U.S.A. California, California Department of Parks and Recreation, Big Basin Redwoods State Park , West Waddell Creek State Wilderness, along West Berry Creek near Golden and Silver Falls; 37.177655 ǪN, 122.270708 ǪW (WGS84), altitude: ca. 200 m, Coastal Redwood Forest, on rock, sandstone, 29 Mar 2014, John C. Brinda 5770 ( TUM No. M2144! ).

Diagnosis. – A medium-sized Epipterygium species with stems ranging between 5 and 8 mm in size. Dull, bluish-green or sometimes pink plants. Dorsal and ventral leaves well developed, dimorphic, smaller ventral leaves arranged in 2 alternating rows. Dorsal leaves 1.0– 2.2 mm long, oblong, or narrowly elliptical to lanceolate, acute, entire, non-serrate. Costa ending well before tip. Perichaetial leaf apex serrate. Dorsal leave median cells 80–140 μm long, 20–30 μm wide, rhomboidal. Linear marginal cells forming a ± distinct border. Illustrated in Fig. 6 .

Distribution. – North American Pacific coast. U.S.A., Canada.

Figures

Fig. 6. Epipterygium biauritum sp. nov. A, Habitus; B, Dorsal leaf; C, Perichaetial leaf apex.