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Hymenostylium Brid. 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: Bryologia Universa 2: 81. 1827. (Bryol. Univ.) Name publication detail
 

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

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16. Hymenostylium Brid.   立膜藓属  li-mo xian shu
Bryol. Univ. 2: 181. 1827.
 
Plants medium-sized to rather large, to 30(–80) mm high, green to light brown, in dense tufts or cushions. Stems erect, often branched, radiculose at the base; central strand usually absent. Leaves appressed-contorted when dry, spreading to sometimes squarrose when moist, ligulate to lanceolate or linear-lanceolate, upper lamina often keeled, apex acute or occasionally rounded-obtuse or blunt; margins entire, plane or recurved; costa stout, percurrent to shortly excurrent, sometimes ending just below the apex, in cross section with two stereid bands; upper leaf cells quadrate to shortly rectangular or rhomboidal, with papillae low, simple or granular, lumens not obscured; basal cells different, rectangular, usually thin-walled, sometimes porose. Dioicous. Perichaetial leaves weakly differentiated, somewhat sheathing at the base. Setae elongate, yellowish brown to reddish; capsules ovoid to shortly cylindrical; annuli weakly differentiated; peristome absent; opercula conic-rostrate, with a long oblique beak. Calyptrae cucullate, smooth. Spores spherical, brownish, finely papillose.
 
 

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One species and two varieties are known from China.
 
1. Leaf cells strongly trigonous, each cell usually with a large papilla, rarely with 2 papillae...............................
..................................................................................................................... 1b. H. recurvirostre var. cylindricum
1. Leaf cells not trigonous, each cell usually with several small papillae.............................................................. 2
2. Leaves not sheathing at the bases; upper leaf cells rounded-hexagonal to rounded rectangular, rather thick-walled, irregularly arranged.............................................. 1a. H. recurvirostrum var. recurvirostrum
2. Leaves usually sheathing at the bases; upper leaf cells pentagonal to hexagonal, rather thin-walled, regularly arranged..................................................................................... 1c. H. recurvirostrum var. insigne
 
 
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