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Didymodon acutus (Brid.) K. Saito Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Journal of the Hattori Botanical Laboratory 39: 519. 1975. (J. Hattori Bot. Lab.) Name publication detail
 

Project Name Data (Last Modified On 3/12/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/12/2009)
General Reference:

Illustration & Map     (Last Modified On 3/12/2009)
Related Objects:
Illustrations: Saito 1975 (Fig. 56, 1–14).


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Map: Didymodon acutus (Brid.) K. Saito (Distribution in China)

Distribution     (Last Modified On 3/12/2009)
Distribution:
Habitat: on rocks or thin soil over rocks.
Distribution: China, Japan, Mongolia, Central Asia, Europe, North America, and northern Africa.
 

Specimens Examined     (Last Modified On 3/12/2009)
Specimens Examined:
Chinese specimens examined: Guangxi: Rong-shui Co., X.-L. He 5506 (PE). Hebei: Wei Co., Xiao Wu-tai Shan, Y.-S. Zhao 46309 (HKAS, PE). Hubei: Sheng-nong-jia, P.-C. Wu 76268b (PE).

 

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1. Didymodon acutus (Brid.) Saito    尖锐对齿藓 jian-rui dui-chi xian
J. Hattori Bot. Lab. 39. 519. 1975. Barbula acuta (Brid.) Brid., Muscol. Recent. Suppl. 4: 96. 1919. Tortula acuta Brid., Muscol. Recent. Suppl. 1: 265. 1806. Type. Europe.
Didymodon icmadophila auct. non (Schimp. ex C. Müll.) Saito, J. Hattori Bot. Lab. 39: 519. 1975.
 
Plants small, ca. 5–10 mm high, greenish to brown, in dense tufts. Stems usually erect, simple; central strand well developed. Leaves tightly appressed when dry, erect-spreading when moist, broadly ovate-lanceolate, 1.3–1.7 mm × 0.60–0.65 mm; margins nearly revolute throughout; costa stout, excurrent in a short awn; upper leaf cells rounded or rounded-quadrate, ca. 6–10 µm wide, rather thin-walled, with 2–4 blunt papillae in each cell; basal cells enlarged, oblong-ovate, thin-walled, smooth, hyaline, yellowish green. Setae erect, 6–11 mm long; capsules shortly cylindrical, 1.2–1.6 mm long; annuli developed, narrow, persistent; opercula obliquely conic-rostrate; peristome erect, irregularly bifid, fragile, pale-reddish. Calyptrae cucullate, smooth. Spores 10–15 µm in diameter, pale brownish green, smooth to finely granulate.
 
 
 


 

 
 
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