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Pterygoneurum Jur. 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 Garden Decrease font Increase font Restore font
 

Published In: Die Laubmoosflora von Oestrreich-Ungarn 95. 1882. (Laubm.-Fl. Oesterr.-Ung.) Name publication detail
 

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

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25. Pterygoneurum Jur.   盐土藓属   yan-tu xian shu
Laubm.-Fl. Oesterr.-Ung. 95. 1882.
 
Plants tiny, grayish green or yellowish green, bulbiform, gregarious or in thin tufts. Stems very short, erect, simple or sometimes branched at the base; central strand present. Leaves appressed when dry, weakly spreading when moist, ovate to ligulate or elliptic, broadly concave; margins plane or weakly incurved; costa rather stout, excurrent, ending in a long awn, either smooth or denticulate; in cross section only dorsal stereid band present; with 2–4 rows of green lamellae on the ventral side; upper leaf cells quadrate to short rectangular or hexagonal, thin- to moderately thick-walled, smooth or with simple or blunt C-shaped papillae; basal cells rectangular, thin-walled, smooth. Autoicous. Perichaetial leaves not clearly differentiated. Setae short, straight; capsules immersed or shortly exserted, subhemispheric to ovoid or shortly cylindrical; annuli none or weakly differentiated; opercula conic-rostrate, with a short beak; peristome teeth absent or rudimentary. Calyptrae cucullate or mitrate, smooth. Spores large, spherical, brownish, papillose.
 
 

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The genus consists of about 12 species in the world; two species are known from China.

1. Costal awn about as long as the leaf length, smooth or nearly so................................................... 1. P. ovatum

1. Costal awn to twice as long as the leaf length, denticulate......................................................... 2. P. subsessile
 
 
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