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Published In: Die Natürlichen Pflanzenfamilien I(3): 1055. 1908. (Nat. Pflanzenfam.) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 4/2/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/6/2009)
General Reference:

Illustration & Map     (Last Modified On 5/6/2009)
Related Objects:


Illustrations: Gollania clarescens (Mitt.) Broth. (Figs. 1–13.)
Map: Gollania clarescens (Mitt.) Broth. (Distribution in China)

Distribution     (Last Modified On 5/6/2009)
Habitat: on rocks, soil, humus, rarely on tree trunks; alt. 1850–3600 m.
Distribution: China, India, Nepal, and Pakistan.


Specimens Examined     (Last Modified On 5/6/2009)
Specimens Examined:


Chinese specimens examined: Yunnan: border between Yunnan and Xizang, Long-geng, M. Zang 4376 (HKAS); Gong-shan Co., M.-Z. Wang 11255 (PE); Wei-xi Co., L.-S. Wang 82-423 (HKAS); Yi-liang Co., X.-J. Li 4357 (HKAS); Yong-ping Co., J.-K. Yang 81-78 (HKAS).

Notes     (Last Modified On 5/6/2009)
general taxon notes:


This species is characterized by the erect-spreading stem leaves, slightly falcate-secund dorsal leaves, recurved leaf margins nearly throughout, thin-walled leaf cells, slightly differentiated alar cells, and erect perichaetial leaves. The slightly falcate-secund leaves are very similar to those of Gollania ruginosa. It is different from the latter by the ventral leaves with plane apices, the dorsal leaves with thin-walled cells, and the perichaetial leaves with erect apices; while Gollania ruginosa has ventral leaves with rugose apices, the dorsal leaves with thick-walled cells, and the perichaetial leaves with reflexed leaf apices. Gollania clarescens is also similar to G. schensiana, but the latter species has leaf margins recurved only at base, alar cells distinctly differentiated, and costae much weaker.


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2. Gollania clarescens (Mitt.) Broth.   粗枝藓  cu zhi xian
Nat. Pflanzenfam. I(3): 1055. 1908. Hylocomium clarescens (Mitt.) Broth. in Par., Index Bryol. (ed. 2) 2: 351. 1904. Microthamnium clarescens (Mitt.) Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1876–77: 430. 1878. Stereodon clarescens Mitt., J. Proc. Linn. Soc., Bot., Suppl. 2: 100. 1859. Type: India. Simla, Thomson 1064b.
Hypnum clarescens Wils. in Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 100. 1859, nom. illeg.
Plants medium-sized, pale yellowish green or pale brownish green, somewhat glossy. Stems prostrate, up to 5 cm long, irregularly or pinnately branched; stem elliptic in cross section; stems and branches terete, leaves spreading; branches ca. 1 cm long; pseudoparaphyllia lanceolate, 3–10 cells wide at base. Stem leaves differentiated, dorsal leaves erect or slightly falcate, 2.2–2.3 mm × 0.8–0.9 mm, elliptic-lanceolate, gradually and slenderly acuminate; slightly decurrent at base; margins recurved at base or nearly throughout; costae double, ca. 1/4 the leaf length, separate at base; median leaf cells narrowly rhomboidal, 45–65 µm × 3–4 µm, thin-walled, sometimes prorate; alar cells somewhat differentiated, in 3–5 longitudinal rows, 3–4 transverse rows; ventral leaves plane, hardly rugose at apex; branch leaves narrower, 1.2–1.4 mm × 0.3–0.6 mm. Perichaetial leaves straight at apex, costae indistinct, thin-walled. Setae 2–3 cm long; capsules ovoid, horizontal, 1.2–1.7 mm long. Spores 10–13 µm in diameter.
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