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Leptopterigynandrum Müll. Hal. Search in The Plant ListSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Hedwigia 36(2): 114. 1897. (Hedwigia) 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 3/30/2009)
General Reference:

Notes     (Last Modified On 3/30/2009)
general taxon notes:
Ten species are currently placed under this genus with 6 species better understood (Crosby et al. 2000). Most of the species are distributed in East Asia, mainly from the Himalayan regions. Two species occur in Southwestern South America. In China four species are known, with a distribution range in Hengduan Mts. and southwestern Xizang and Qinghai regions.
 
The study of Leptopterigynandrum in China was started by Brotherus (1924), who described two new species: L. incurvatum and L. stricticaule, from Yunnan and Sichuan. Later, Brotherus (1929) published another new species, L. tenellum, from Sichuan. P.-C. Chen et al. (1978) recognized all three species. X.-J. Li (editor-in-
chief, 1985) treated four species in Leptopterigynandrum from Xizang. J.-C. Zhao (1993) reported L. austro-alpinum newly in East Tianshan of Xinjiang province. Recently B. C. Tan and Y. Jia (1997) found three species, including L. incurvatum Broth., L. subintegrum (Mitt.) Broth, and L. austro-alpinum. C. Müll. from Qinghai.
 

 

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11. Leptopterigynandrum C. Müll. 叉羽藓属 cha-yu xian shu
Hedwigia 36: 114. 1897.
 
Plants rather slender, rigid when dry, dark yellowish green or brownish green, in dense or loose mats. Stem leaves and branch leaves not obviously differentiated, densely imbricate when dry, mostly ovate, oblong-ovate or widely ovate, lanceolate toward apex, often secund; margins plane, entire; costa double, short, weak or inconspicuous; leaf cells hexagonal, oblong-rhomboidal or oblong-oval; alar cells small, quadrate or round-quadrate, smooth. Dioicous. Setae slender, ca. 1.0 cm long; capsules erect, oblong-ovoid; opercula conical; peristome double; exostome teeth lanceolate, basal membrane low; endostome segments narrow; cilia absent. Calyptrae not seen.
 
 

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1. Plants loosely growing together; leaves oblong-ovate; costa weak or absent ........................4. L. tenellum
1. Plants densely growing together; leaves ovate or broadly ovate; costa short or weak ....................2
2. Leaf apex mostly straight, never secund ..........................................................3. L. subintegrum
2. Leaf apex usually secund, rarely straight ..................................................................................3
3. Leaf cells rather small, hexagonal or nearly rectangular..............................1. L. austro-alpinum
3. Leaf cells rather large, rhomboidal or oblong-ovate.....................................2. L. incurvatum
 
 
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