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Pseudobarbella Nog. 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: Journal of the Hattori Botanical Laboratory 2: 81. 1947[1948]. (J. Hattori Bot. Lab.) Name publication detail
 

Project Name Data (Last Modified On 12/16/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/14/2011)
general taxon notes:
There are eight species of Pseudobarbella in the world (Crosby et al. 2000), mostly distributed in tropical and subtropical regions. Buck (1994) considered Pseudobarbella and Pseudotrachypus P. de la Varde & Thér. to be the same; however, the geographic distributions of the two genera are quite different. In addition, the sporophytes of Pseudotrachypus are unknown. Here, Pseudobarbella is recognized as a distinct genus. Four species are known in China.

 

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15. Pseudobarbella Nog.   假悬藓属   jia xuan xian shu
J. Hattori Bot. Lab. 2: 81. 1947 [1948].
 
Plants small to medium-sized, yellowish green or yellowish brown, not or slightly glossy to glossy, in loose mats. Stems elongate, prostrate at the base, pendulous above, loosely or densely irregularly branched; branches short, densely and complanately foliate, obtuse at the apex. Stem leaves complanate, widely spreading when dry or moist, ovate to oblong-ovate, or somewhat cordate at the base, gradually long-acuminate, ending in a slender or piliferous apex; margins crenulate to serrulate or serrate, incurved on one side at the base; costae single, slender, reaching mid-leaf or above; median leaf cells linear, unipapillose or pluripapillose, thin-walled; alar cells not well defined, quadrate or rectangular; branch leaves similar to stem leaves, often broader and shorter at the apex. Dioicous. Perichaetia on secondary stems and branches; inner perichaetial leaves sheathing at the base. Setae elongate, slender, often scabrose above; capsules erect or suberect, oblong-ovoid to cylindrical, with or without an apophysis; opercula conic, long-rostrate; annuli differentiated; peristome double; exostome teeth lanceolate, densely papillose above, striolate below; endostome segments as long as or shorter than the teeth, linear-lanceolate, keeled; basal membrane high; cilia rudimentary. Calyptrae cucullate, smooth. Spores spherical, minutely papillose.
 
 

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1. Leaf cells centrally unipapillose; propagulae absent............................................................................................ 2
2. Stem leaves narrowly oblong-ovate, slender or piliferous at the apex..................................... 1. P. attenuata
2. Stem leaves ovate or cordate-ovate, long-acuminate at the apex..................................................................... 3
3. Stem leaves faintly plicate, complanately spreading at the base; margins serrulate; median leaf cells 50–60 µm long.............................................................................................................................................. 2. P. laosiensis
3. Stem leaves deeply multi-plicate, slightly squarrose at the base; margins serrate; median leaf cells 35–45 µm long............................................................................................................................................. 3. P. levieri
 
 
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