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Published In: Revue Bryologique, nouvelle série 1: 193. 1928. (Rev. Bryol., n.s.) Name publication detail

Project Name Data (Last Modified On 3/16/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/4/2009)
General Reference:

Illustration & Map     (Last Modified On 5/4/2009)
Illustrations: Jaffueliobryum wrightii (Sull.) Thér. (Figs. 1–10.)
Map: Jaffueliobryum wrightii (Sull.) Thér. (Distribution in China)

Distribution     (Last Modified On 5/4/2009)
Habitat: on thin, sandy soil over rocks or on open slopes in dry mountains; alt. 1200–4500 m.
Distribution: China, Mongolia, Russia, U.S.A., Mexico, and Bolivia.

Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:
Chinese specimens examined: Nei Mongol: A-ba-ge-qi (Co.), Q.-R. Wu 1127 (HIMC); Mt. Helan, Z.-G. Tong 1097, 1099, 1859, 2089 (all in HIMC). Xinjiang: Ha-mi Co., J.-C. Zhao 4552 (IFSBH); He-jing Co., Z.-L. Liu 952225a (MO). Xizang: Jiang-zi Co., Z.-X. Tan 10 (IFSBH); Lang Co., M. Zang 1695 (HKAS); Long-zi Co., Zhun-ba, M. Zang 1075, 1675 (both in HKAS, IFSBH).

Notes     (Last Modified On 5/4/2009)
general taxon notes:
Jaffueliobryum wrightii is a xerophilous moss and mostly characterized by its broadly ovate leaves with a long, hyaline point and hyaline border in 3–4 rows of cells. This species shows a great variation in leaf shape, length of hyaline hair-points, and upper marginal and basal leaf cells. The Chinese specimens usually exhibit relatively shorter hair-points and longer leaves than the specimens from other countries.


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1. Jaffueliobryum wrightii (Sull.) Thér.   缨齿藓   ying-chi xian
Rev. Bryol., n.s. 1: 193. 1928. Grimmia wrightii (Sull.) Aust., Bull. Torrey Bot. Club 6: 46. 1875. Coscinodon wrightii Sull. in Sull. & Lesq., Musci Hep. U.S. (repr.) 132 [Schedae 30]. 1856. Type. U.S.A.: Texas, San Marcos, Wright s.n.
Jaffueliobryum latifolium Thér., Rev. Bryol., n.s. 1: 193. 1928. Coscinodon latifolius Lindb. & Arnell, Kongl. Svenska Vetenskapsakad. Handl. 23(10): 99. 1890, hom. illeg., non (Schwaegr.) De Not., 1836.
Jaffueliobryum marginatum Thér., Rev. Bryol., n.s. 1: 194. 1928.
Plants small to usually medium-sized, 0.5–2.0 cm high, yellowish green above, brownish below, in dense cushions. Stems erect, moderately branched, subjulaceous, with a well developed central strand in cross section. Leaves thin, somewhat hyaline, particularly at margins, densely imbricate when dry, erect-spreading when moist, broadly ovate to obovate, somewhat concave, 0.5–0.9 mm × 0.4–0.6 mm, abruptly narrowed from an ovate base to rounded-obtuse apex, often ending with hair-points shorter than lamina length; margins plane throughout; costa single, strong, excurrent in a long awn; upper leaf cells irregularly quadrate to rounded-hexagonal, 8–12 µm × 6–8 µm, chlrophyllose, thick-walled, 3–4 rows of cells near margins irregularly rectangular, hyaline, 15–18 µm × 6–8 µm, thin-walled; basal cells short-rectangular to rectangular, 15–28 µm × 11–16 µm, somewhat hyaline, thin-walled. Autoicous. Perichaetial leaves much larger than upper stem leaves. Setae straight, ca. 0.3 mm long, shorter than the capsule urn; capsules erect, immersed, brownish, ovoid, wide-mouthed, ca. 0.8 mm long; annuli differentiated, consisting of thick-walled cells; opercula conic, with short, obtuse beaks; peristome teeth lanceolate, irregularly divided above, perforate below, densely papillose throughout. Calyptrae large, campanulate, covering most of the capsule, longitudinally plicate, deeply lobed at base. Spores spherical, 7–9 µm in diameter, finely granulose.


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