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Trichosteleum Mitt. 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 Linnean Society, Botany 10: 181. 1868. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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Notes     (Last Modified On 4/2/2009)
general taxon notes:
The genus consists of some 80 species in the world, mainly in the tropical or subtropical regions. Five species are recognized in China.
 
 

 

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20. Trichosteleum Mitt.   刺疣藓属   ci you xian shu
J. Linn. Soc., Bot. 10: 181. 1868. Hypnum subsect. Trichosteleum (Mitt.) C. Müll., Linnaea 39: 465. 1875.
 
Plants slender or robust, green or yellowish green, rarely yellowish or yellowish brown, not glossy or somewhat glossy. Stems prostrate, elongate, with rhizoids, densely irregularly branched or subpinnately; branches simple or rarely with short branchlets, more or less blunt at apex. Leaves not dimorphic, erect or erect-spreading, sometimes falcate-secund, spathulately concave, not plicate, lanceolate, oblong-lanceolate or oblong-elliptic, rarely ovate, constricted from the middle into a narrowly long acuminate apex; margins usually reflexed, serrate above; costae absent; leaf cells oblong-oval or narrowly rhomboidal, often thin-walled, rarely thick-walled, pitted; alar region consisting of a few inflated, oblong-oval, hyaline or yellowish cells. Autoicous. Inner perichaetial leaves erect, narrowly lanceolate; margins serrulate; costae absent; cells smooth. Setae thin, short, curved near capsules, usually coarse above, rarely smooth; capsules usually pendent, small, asymmetric; exothecial cells strongly collenchymatous, often mammillose; opercula conic, very slenderly long-rostrate; annuli absent; peristome double; exostome teeth narrowly lanceolate, with a zigzag median line on outer surface, cross-striate below, papillose above; inner surface clearly trabecualte; endostome segments as high as the teeth, yellowish, papillose, keeled, perforate; basal membrane high; cilia usually 1, slightly nodulose, sometimes reduced. Calyptrae cucullate, smooth or coarse above. Spores small, spherical, green, papillose.
 
 

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1. Leaf cells distinctly papillose............................................................................................... 2
1. Leaf cells indistinctly papillose..............................................................................................3
2. Leaf apices mostly acute; margins often reflexed; perichaetial leaves moderately papillose.....1. T. boschii
2. Leaf apices gradually acuminate or narrowed into a long, slender acumen; perichaetial leaves strongly papillose...............................................................................................................5. T. stigmosum
3. Leaves large, moderately concave; apices mostly narrowly acuminate above, occasionally filiform...............
............................................................................................................................2. T. lutschianum
3. Leaves small to medium-sized, flat, slightly concave; apices mostly acute...................................4
4. Leaves ca. 1 mm long, ovate-lanceolate; margins distinctly serrulate........................... 4. T. singapurense
4. Leaves ca. 2 mm long, narrowly oblong-lanceolate; margins somewhat serrulate.....3. T. saproxylophilum

 

 
 
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