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Rhytidiadelphus (Limpr.) Warnst. 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: Kryptogamenflora der Mark Brandenburg, Laubmoose 2(5): 917. 1906. (Krypt.-Fl. Brandenburg, Laubm.) Name publication detail
 

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Notes     (Last Modified On 4/3/2009)
general taxon notes:
The genus includes four species in the world, mostly distributed in coniferous forests. Three species are found in China.
 

 

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9.  Rhytidiadelphus(Lindb. ex Limpr.) Warnst.   拟垂枝藓属   ni chui zhi xian shu
Krypt.-Fl. Brandenburg, Laubm. 2: 842. 1906. Hylocomium sect. Rhytidiadelphus (Limpr.) Braith., Brit. Moss Fl. 3: 142. 1902. Hylocomium subgen. Rhytidiadelphus Limpr., Laubm. Deutschl. 3: 590. 1901.
 
Plants medium-sized to large, often robust, stiff, pale green to yellowish green, usually glossy, in loose patches. Secondary stems simple or irregularly 1–2-pinnately branched, sometimes hardly branched; branches short, blunt or slender, or sometimes elongate, tips of branches often attenuate, sometimes slightly curved, erect or erect-spreading; pseudoparaphyllia only on stems; rhizoids reddish brown. Leaves in several ranks, densely arranged, stem leaves usually differentiated from branch leaves; stem leaves ovate, broadly ovate-lanceolate or cordately lanceolate, squarrose-recurved or falcate-secund, plicate or not plicate; margins entire or toothed; costae double, strong, more than 1/2 the leaf length, sometimes shorter and faint; laminal cells linear, usually prorate at back; basal cells often broader and shorter, walls slightly incrassate, usually pitted, reddish brown; alar cells sometimes slightly differentiated; branch leaves usually ovate-lanceolate or rounded ovate-lanceolate, sometimes slightly falcate-secund, or squarrose, usually plicate; margins entire or serrulate; costae mostly short and weak. Dioicous. Inner perichaetial leaves smaller, scale-like, often squarrose, with a long piliform apex, usually not plicate, ecostate. Setae thin, elongate; capsules ovoid, shortly cylindrical, slightly curved, rarely with a short apophysis, inclined or horizontal, sometimes slightly pendent; opercula conic, shortly rostrate; peristome double; exostome teeth narrowly lanceolate, orange-red, trabeculate, usually a light border formed from base to middle, outer surface cross-striate, often papillose above; endostome segments yellowish brown, often perforated along median line; basal membrane high; cilia 1–3, nodulose. Calyptrae cucullate, smooth. Spores spherical, finely papillose, 11–24 µm in diameter.
 
 
 

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1. Secondary stems usually robust; costae double, extending beyond the midleaf..................3. R. triquetrus
1. Secondary stems slender; costae weaker, not extending to the midleaf..............................................2
2. Stem leaves with short apices; branch leaves rounded-ovate and with short apices............. 1. R. japonicus
2. Stem leaves with long, slender apices; branch leaves ovate-lanceolate, with long apices......2. R. squarrosus
 
 
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