24. Fissidens hollianus Dozy & Molk.    糙柄凤尾藓   cao-bing feng-wei xian

Bryol. Jav. 1: 4, tab. 4. 1855. Type. Indonesia: Java, Holle 13 (holotype L).

Fissidens japonicopunctaus Shin, Sci. Rep. Kagoshima Univ. 13: 86, f. 21. 1964.

 

Plants small, green to yellowish green. Leafy stems usually simple, 2.4–4.3 mm long, 0.8–1.7 mm wide; axillary hyaline nodules not developed; central strand not differentiated. Leaves in 6–12 pairs, densely arranged, the lowest leaves much smaller, middle and upper leaves almost equal in size, lanceolate to oblong-lanceolate, 0.8–1.0 mm × 0.2–0.3 mm, acute at apex; base of dorsal laminae rounded; vaginant laminae 1/2–3/5 the leaf length; costa light yellowish brown, percurrent to excurrent margins nearly entire; cells of apical and dorsal laminae quadrate to irregularly hexagonal, 5–6 µm long, thin-walled, dark and obscure, pluripapillose; cells of vaginant laminae similar to those of apical and dorsal laminae, but longer, with thicker walls and fewer papillae toward the base near costa; limbidia usually found only on lower one-half of perichaetial leaves, composed of 2–5 rows of cells. Autoicous. Archegonia terminal, 210–235 µm long. Perichaetial leaves larger than stem leaves, ca. 1.3 mm long; base of dorsal laminae wedge-shaped, ending above the base. Sporophytes not seen.