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Leptocladiella M. Fleisch. 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 Musci der Flora von Buitenzorg 4: 1205. 1923. (Musci Buitenzorg) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 4/3/2009)
Acceptance : Accepted
Project Data     (Last Modified On 4/3/2009)
General Reference:

Notes     (Last Modified On 4/3/2009)
general taxon notes:
The genus consists of two species in the world, and both are known from China.
 
 

 

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3. Leptocladiella Fleisch.   薄壁藓属   bao bi xian shu
Musci Buitenzorg 4: 1205. 1923.
 
Plants small to medium-sized, dense, olive green to yellowish green, slightly glossy. Main stems prostrate; in cross section central strand absent, the inner cortex of thin-walled parenchyma cells surrounded by a sterome of smaller, thick-walled cells, and an outer hyalodermis of large, thin-walled cells. Secondary stems erect or slightly curved, 1–2-pinnately branched, with shortly arcuate branchlets; paraphyllia absent; pseudoparaphyllia lanceolate; rhizoids rarely persistent on stems and branches. Stem leaves differentiated from branch leaves; stem leaves appressed when dry, spreading when moist, broadly rounded ovate or ovate, slightly concave, weakly plicate, acuminate or acute at apex, sometimes slightly auriculate at base, clearly narrowly decurrent; margins plane or reflexed at base, sometimes entire or serrate above; costae double, short or faint, 1/6–1/3 the leaf length; laminal cells linear, curved, approximately 9–15:1, smooth, upper leaf cells slightly thick-walled; lower cells gradually becoming shorter, slightly incrassate, not or slightly pitted; alar cells clearly differentiated, isodiametric to oblong, often inflated, hyaline, loosely arranged, decurrent; branch leaves smaller than stem leaves, dense, ovate, oblong-ovate or ovate-lanceolate, acute or acuminate at apex, decurrent at base; margins serrate or dentate above, entire and reflexed below; costae double, stronger than that of stem leaves, extending 1/3 to 1/2 the leaf length, when single often forked, with one branch much longer than the other and usually ending in a spine; laminal cells smooth or prorate, alar cells differentiated. Dioicous. Perichaetia on main stems. Setae slender and elongate, reddish brown, smooth; capsules suberect or inclined, nearly symmetric, oblong-ovoid, not plicate when dry, not constricted below the mouth; exothecial cells isodiametric, sometimes oblong, unevenly incrassate; stomata superficial at base; annuli not differentiated; opercula shortly rostrate; peristome double; exostome teeth lanceolate, yellowish, bordered at margins, outer surface cross-striate, inner surface irregularly striate; endostome segments light yellow, papillose; basal membrane 1/3–1/2 the length of segments, not perforated or narrowly perforated along median line; cilia 1 or reduced. Spores spherical, finely papillose, 12–18 µm in diameter.
 

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1. Stem leaves more or less falcate, slightly decurrent at base; branch leaves rounded ovate, shortly acute at apex.................................................................................................................1. L. delicatula
1. Stem leaves straight at apex, conspicuously decurrent at base; branch leaves narrowly ovate-lanceolate, acuminate at apex..............................................................................................2. L. psilura

 

 
 
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