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Published In: Die Laubmoose Fennoskandias 145. 1923. (Laubm. Fennoskand.) Name publication detail

Project Name Data (Last Modified On 3/13/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/13/2009)
General Reference:

Illustration & Map     (Last Modified On 3/13/2009)
Related Objects:
Illustrations: C. Gao (ed.) 1996 (Pl. 79, figs. 1–5).

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Map: Stegonia latifolia (Schwägr.) Venturi ex Broth. (Distribution in China)

Distribution     (Last Modified On 3/13/2009)
Habitat: on rocks in alpine regions.
Distribution: China, India, Russia, Europe, and North America.

Specimens Examined     (Last Modified On 3/13/2009)
Specimens Examined:
Chinese specimens examined: Gansu: G. N. Potanin 8a (H); He-xi Co., S.-Z. Hu 1837a (MO, PE); Qi-lian Shan (Mt.), D.-Z. Zhuo 761-50 (PE). Hebei: Xiao-wu-tai Shan (Mt.), L.-Q. Yu s.n. (PE). Liaoning: Ben-xi Co., C. Gao 8357 (HKAS, IFSBH). Xinjiang: Bur-qin Co., S.-L. Chen 331 (PE); He-jing Co., S. He 951227 (MO); Ku-che Co., S. He 951207 (MO); Urumqi Co., S. He 951084 (MO), Whittemore et al. 4814 (MO). Xizang: Lang Co., M. Zang 1726 (HKAS).


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1. Stegonia latifolia (Schwaegr.) Vent. ex Broth. 石芽藓 shi-ya xian
Laubm. Fennoskand. 145. 1923. Weissia latifolia Schwaegr. in Schultes, Reise Glockner 2: 665. 1804. Type. Europe.
Plants tiny, bulbiform, 2–3 mm high, grayish green with whitish color, in loose tufts. Stems erect, simple, rarely branched; central strand present. Leaves appressed or imbricate when dry, loosely spreading when moist, cordate to circular or broadly obovate, often deeply concave; margins broadly recurved or plane, entire except near the apex, borders not differentiated; costa thin, subpercurrent to percurrent or occasionally excurrent, ending in a hyaline awn; in cross section only dorsal stereid band present; upper leaf cells rhombic to hexagonal, usually thin-walled, or more elongate, rhomboidal near the apex, becoming thicker walled, smooth; basal cells rectangular, moderately thick-walled, smooth. Autoicous. Perichaetial leaves similar to stem leaves. Setae elongate, straight, ca. 4–6(–12) mm long, yellowish brown; capsules erect, oblong-ovoid to cylindrical, ca. 1 mm long, with a short neck; annuli none; opercula conic-rostrate, with a long, oblique beak; peristome teeth 16, erect, linear-lanceolate, not divided or irregularly divided, densely papillose. Calyptrae not seen. Spores 39–45 µm in diameter, reddish brown, densely papillose.


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