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Trichostomum Bruch 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: Flora 12: 396. 1829. (Flora) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 4/14/2009)
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33. Trichostomum Bruch   毛口藓属 mao-kou xian shu
Flora 12: 396. 1829.
 
Plants small to medium-sized, yellowish green to light brown, in loose or dense tufts. Stems erect, simple or usually irregularly branched; central strand present. Leaves contorted-curved or crisped when dry, erect-spreading or weakly reflexed when moist, narrowly lanceolate to linear-lanceolate, broadly acute, setaceous or obtusely pointed, upper lamina sometimes broadly channeled or cucullate, sometimes weakly sheathing at base; margins usually plane, sometimes incurved and wavy, entire or crenulate by projecting papillae; costa stout, often excurrent as a short awn or as an apiculus, or sometimes percurrent, in cross section with 2 stereid bands; upper leaf cells rounded-quadrate or rounded-hexagonal, rather thin-walled to moderately thick-walled, green and obscure, each cell with several large, circular papillae on both surfaces; basal cells slightly elongate, irregularly rectangular, smooth, yellowish or hyaline. Dioicous or sometimes autoicous. Perichaetial leaves similar to stem leaves. Setae elongate; capsules erect, oblong-ellipsoidal to short-cylindrical, with short necks, rarely curved; annuli none or differentiated into 3–5 rows of vesiculose cells, persistent; peristome teeth erect, linear or filiform, undivided or sometimes divided, smooth or papillose; opercula conic-rostrate, with a short or long beak. Calyptrae cucullate, smooth. Spores spherical, yellowish or reddish brown, coarsely papillose.
 

 

 

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1. Leaf margins narrowly incurved in upper 1/3–1/2............................................................................................... 2
1. Leaf margins usually plane throughout.................................................................................................................. 4
2. Leaves often cucullate or channeled, acute or acuminate at apex......................................... 2. T. crispulum
2. Leaves more or less flat, scarcely cucullate, apiculate or obtusely pointed at apex................................... 3
3. Leaves apiculate at apex; basal cells forming a clearly differentiated group............................ 6. T. sinochenii
3. Leaves mostly obtusely pointed at apex; basal cells not clearly differentiated............................. 8. T. zanderi
4. Leaves linear-lanceolate, often circinate when dry........................................................................................ 5
4. Leaves ovate-lanceolate, narrow-lingulate to spathulate, or oblong, erect-flexuose or contorted when dry....................................................................................................................................................................... 6
5. Leaf margins more or less undulate when dry; costa ending just below leaf apex.................. 7. T. tenuirostre
5. Leaf margins plane when dry; costa shortly excurrent............................................................ 3. T. hattorianum
6. Leaves narrowly ovate-lanceolate; peristome teeth usually irregularly 2–3-divided; setae 10–12 mm long; dioicous................................................................................................................... 1. T. brachydontium
6.      Leaves narrowly lingulate to spathulate or oblong; peristome teeth not divided; setae 5–7 mm long; autoicous.......................................................................................................................................................... 7
7. Leaves not clearly narrowed at base, upper lamina sometimes keeled, rounded-obtuse at apex; costa percurent or shortly excurrent.................................................................................................... 4. T. planifolium
7. Leaves distinctly narrowed at base, widest at middle, uppper lamina plane, acute at apex; costa ending below apex............................................................................................................................................. 5. T. platyphyllum
 
 
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