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Palisadula Toyama 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: Acta Phytotaxonomica et Geobotanica 6: 169. 1937. (Acta Phytotax. Geobot.) Name publication detail
 

Project Name Data (Last Modified On 12/16/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/14/2011)
general taxon notes:
The genus consists of two species in the world (Crosby et al. 2000), and both occur in China.

 

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2. Palisadula Toyama   栅孔藓属   shan kong xian shu
Acta Phytotax. Geobot. 6: 169. 1937.
 
Plants small to medium-sized, yellowish green to brown, in dense mats, tightly attached to substrate. Stoloniferous stems present, prostrate, with much smaller leaves; secondary stems 2–6 cm long, with short, erect, often horizontally spreading branches; rhizoids papillose; pseudoparaphyllia foliose, with spinosely dentate margins; in cross section of stem, a central strand absent. Leaves of secondary stems and branches oblong-ovate, obovate to oblong-lanceolate, more or less concave, long and slenderly acuminate at the apex; margins plane, entire or crenulate; costae absent or indistinct; leaf cells narrowly rhomboidal to sublinear, smooth, thin-walled to moderately thick-walled, more or less porose; alar cells few, irregularly rectangular, hyaline, thin-walled, with a few, brown, more or less thick-walled cells above. Gemmae filamentous, papillose. Dioicous. Perigonia and perichaetia usually present on stoloniferous stems, rarely on secondary stems. Inner perichaetial leaves scarcely differentiated, margins distinctly serrate. Setae 8–12 mm long, smooth; capsules erect, oblong-ovoid, symmetric; opercula conic, long rostrate; stomata present at the neck; peristome double; exostome teeth narrowly lanceolate, hyaline, smooth, with large holes and palisade-like appendages on the dorsal surface; endostome rudimentary or absent. Calyptrae cucullate. Spores spherical, finely papillose.
 
 

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1. Plants small; secondary stem and branch leaves oblong-ovate at the base, gradually narrowed to a long-acuminate apex............................................................................................................................. 1. P. chrysophylla
1. Plants medium-sized; secondary stem and branch leaves ovate or obovate at the base, suddenly narrowed to a relatively short apex................................................................................................................................ 2. P. katoi
 
 
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