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!Dichelyma falcatum (Hedw.) Myrin 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: Kongl[iga]. Vetenskaps Academiens Handlingar 1832: 274. 1833. (Kongl. Vetensk. Acad. Handl.) Name publication detail
 

Project Name Data (Last Modified On 12/16/2011)
Acceptance : Accepted
Distribution     (Last Modified On 12/15/2011)
Distribution:
Habitat: on rocks in streamlets, tree trunks, and wet forest ground by streams; alt. 2200 m.
Distribution: China, Europe, and North America.
 

Specimens Examined     (Last Modified On 12/15/2011)
Specimens Examined:
Chinese specimens examined: Xinjiang: Kanas Natural Reserve, Sulayman 1635, 2742 (both in PE, XJU).
 

Notes     (Last Modified On 12/15/2011)
general taxon notes:
Sulayman and P.-C. Wu (2009) first reported this species in Asia. It is characterized by the secund leaves, the percurrent to shortly excurrent costae, and the endostome segments often joined together as a trellis-like cone.

 

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1. Dichelyma falcatum (Hedw.) Myrin   网齿弯刀藓   wang chi wan dao xian
Kongl. Ventensk. Acad. Handl. 1832: 274. 1833. Histriomitrium falcatum (Hedw.) Sendtn., Bryol. Siles. 278. 1869. Neckera falcata (Hedw.) Müll. Hal., Syn. Musc. Frond. 2: 143. 1850. Fontinalis falcata Hedw., Sp. Musc. Frond. 299. 1801. Type: Europe.
 
Plants rather large, elongate, yellowish green, dark green when old, in loose tufts. Stems to 5 cm long, irregularly branched or dichotomously branched. Stem and branch leaves similar, oblong-ovate at the base, 3–5 mm long, keeled, mostly falcate, acuminate at the apex, constricted at the base; margins serrulate at the apex; costae often percurrent or excurrent; apical leaf cells oblong-ovate to rhomboidal, prorate; median cells sublinear, thin-walled; basal cells slightly yellow, shortly rectangular to subquadrate, strongly thick-walled. Dioicous. Perichaetial leaves to 6 mm long. Setae 10–15 mm long; capsules ovoid-cylindrical, exserted; opercula conic, obliquely rostrate; peristome double, yellowish brown; exostome teeth densely spinulosely papillose; endostome segments joined together as a trellis-like cone, densely papillose. Spores spherical, 12–14 µm in diameter, nearly smooth or finely papillose.

 

 
 
 
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