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Published In: Journal of the Proceedings of the Linnean Society, Botany, Supplement 2: 150. 1859. (J. Proc. Linn. Soc., Bot., Suppl.) Name publication detail

Project Name Data (Last Modified On 4/3/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/6/2009)
General Reference:

Illustration & Map     (Last Modified On 5/6/2009)
Illustrations: Oligotrichum semilamellatum (Hook. f.) Mitt. (Figs. 1–11.)
Map: Oligotrichum semilamellatum (Hook. f.) Mitt. (Distribution in China)

Distribution     (Last Modified On 5/6/2009)
Habitat: on rather moist substrates along roadsides, forest ground, or rocks; alt. 2500 m.
Distribution: China and the Himalayas.

Specimens Examined     (Last Modified On 5/6/2009)
Specimens Examined:
Chinese specimens examined: Yunnan: Gaoligongshan (Mt.), Yunnan Univ. Team 10a (PE); Jing-dong Co., J.-Q. Zhang 1017 (PE).


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5. Oligotrichum semilamellatum (Hook. f.) Mitt.   半栉小赤藓   ban zhi xiao chi xian
J. Proc. Linn. Soc., Bot., Suppl. 2: 150. 1859. Polytrichum semilamellatum Hook. f., Icon. Pl. 2: 194A. 1837. Type: the Himalayas.
Plants medium-sized, 1–3 cm high, female plants slightly larger than the male ones, brownish green to reddish brown, erect, aggregate or scattered. Stems with weakly developed central strand; rhizoids numerous at base. Leaves lanceolate, sheathing or concave at base, loosely arranged, upper leaves usually revolute when dry, erect-spreading when moist; middle leaves 2.5–4.5 mm × 0.5–0.8 mm, sheathing or often clasping at base; margins serrate; costa somewhat broad, vanishing below the apex; ventral lamellae longitudinally undulate or crisped, usually 5–6 rows, 3–6 cells high; on the leaf back, sometimes with low lamellae, 1–3 cells high; leaf cells unistratose; median cells rounded quadrate, 10–15 µm wide; basal cells mostly elongate, 20–45 µm long, rather thin-walled. Dioicous. Perigonia in rosettes, often with innovations in the center. Setae reddish brown, straight; capsules oblong-ovoid to shortly cylindrical, mostly asymmetric, single; peristome teeth single layer, 32, membrane somewhat high; opercula conic at base, shortly beaked. Calyptrae cucullate, smooth, with a few short cilia at apex. Spores spherical, 9–15 µm in diameter, finely papillose.


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