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Published In: Revue Bryologique 31: 63. 1904. (Rev. Bryol.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 3/30/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/5/2009)
General Reference:

Illustration & Map     (Last Modified On 5/5/2009)
Illustrations: Brachythecium helminthocladum Broth. & Paris (Figs. 15–23.)
Map: Brachythecium helminthocladum Broth. & Paris (Distribution in China)

Distribution     (Last Modified On 5/5/2009)
Habitat: on rocks, soil, and tree bases; alt. unknown.
Distribution: China and Japan.

Specimens Examined     (Last Modified On 5/5/2009)
Specimens Examined:
Chinese specimens examined: Anhui: She-xian Co., W.-F. Zheng 1067 (HSNU). Guizhou: Mt. Leigong, S.-Z. Jiang 10246b (GNUB). Heilongjiang: Ning-an Co., C. Gao 6122 (IFSBH). Liaoning: Huan-ren Co., T. Cao 340 (IFSBH). Nei Mongol: Da Xing An Ling (Mt.), C. Gao 958, 964 (both in IFSBH). Shaanxi: Chang-an Co., M.-X. Zhang 382, 526, 405, 719, 1894, 2001, 2088 (all in WUK); Hu Co., Z.-P. Wei 4787 (PE); Ning-shan Co., M.-X. Zhang 4087 (WUK); Zhou-zhi Co., L.-M. Li 1347 (WUK). Sichuan: Mt. Liangshan, G.-C. Zhang 21780 (IFSBH). Yunnan: Teng-chong Co., X.-J. Li 701 (HKAS); Wei-xi Co., D.-C. Zhang 550 (HKAS). Zhejiang: Kai-hua Co., C.-Y. Tian 1005 (HSNU); Mt. Fengyang, X. Zhang 94298 (HSNU).

Notes     (Last Modified On 5/5/2009)
general taxon notes:
Brachythecium helminthocladum is similar to B. glareosum, but differs by its larger branch leaves (larger than stem leaves), its curved leaf apices, and its shorter median leaf cells with rounded ends (53–75 µm long vs. 65–95 µm long).


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15. Brachythecium helminthocladum Broth. & Paris   粗枝青藓   cu zhi qing xian
Rev. Bryol. 31: 63. 1904. Brachythecium kuroishicum var. helminthocladum (Broth. & Paris) Cardot in Dixon, Rev. Bryol., n.s., 4: 158. 1931[1932]. Type: Japan. Honshu, Pref. Gumma, Tsunoda s.n.
Plants medium-sized, yellowish green. Stems prostrate, irregularly subpinnately branched, densely foliate, julaceous. Stem leaves appressed when dry, spreading when moist, broadly ovate to oblong-ovate, 1.85–2.66 mm × 0.9–1.17 mm, concave, somewhat plicate, abruptly acuminate at apex, slightly decurrent at base; margins plane, serrulate above, entire below; costae ending at mid-leaf; median leaf cells nearly linear, 53–75 µm × 7–8 µm, with rounded ends, thin-walled; alar cells clearly differentiated, inflated, hexagonal or shortly rectangular; branch leaves larger than stem leaves, leaf apices often curved. Autoicous? Perichaetial leaves reflexed. Setae ca. 15 mm long, smooth; capsules narrowly ovoid to shortly cylindrical; opercula conic; peristome double; endostome segments shorter than teeth; cilia usually 2. Spores not seen.
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