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Orthomnion Wilson 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: Hooker's Journal of Botany and Kew Garden Miscellany 9: 368. 1857. (Hooker's J. Bot. Kew Gard. Misc.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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Acceptance : Accepted
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General Reference:

Notes     (Last Modified On 3/18/2009)
general taxon notes:
The genus has some nine species in the world (Koponen 1980). Seven species are recognized in China.
 

 

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4. Orthomnion Wils.   立灯藓属   li deng xian shu
Hooker's J. Bot. Kew Gard. Misc. 9: 368. 1857. Orthomnium Wils. ex Broth., Öfvers. Förh. Finska Vetensk.-Soc. 47: 7. 1905, hom. illeg.
Orthomniopsis Broth., Öfvers. Förh. Finska Vetensk.-Soc. 49(10): 1. 1907.
 
Plants medium-sized to rather large, deep green when young, reddish brown when old, in loose tufts. Primary stems prostrate or suberect, with reddish brown rhizoids; secondary stems erect, simple, with rhizoids at base, densely foliate above. Leaves crisped when dry, spreading when moist, rounded-ovate, obovate or broadly spathulate, narrowed at base, obtuse or abruptly acute or apiculate at apex; margins entire, bordered by 1–4 rows of narrower cells or somtimes scarcely bordered; costae thick at base, slender upward, ending above mid-leaf or below the apex, rarely percurrent or shortly excurrent; leaf cells lax, mostly elliptical or hexagonal, elongate toward base. Dioicous. Perichaetial leaves similar to vegetative ones, smaller. Setae clustered, elongate, yellowish; capsules erect, ellipsoidal; neck short; mouth narrowed, reddish brown, smooth; opercula conic, apiculate to shortly rostrate; annuli lacking; peristome double; exostome teeth whitish, lanceolate, densely papillose; endostome segments reduced, often with only basal membrane remaining; cilia lacking. Calyptrae cucullate, mostly hairy. Spores spherical.
 

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1. Leaf margins serrate................................................................................................2
1. Leaf margins entire..................................................................................................3
2. Leaves ovate or obovate; leaf apices acute; costae ending below the apex, without stereid bands in cross section ................................................................................3. O. handelii
2. Leaves elliptical or oblong; leaf apices obtuse or apiculate; costae percurrent, with stereid bands in cross section................................................................................. 7. O. yunnanense
3. Leaf margins hardly bordered, or bordered only at leaf base by 1–3 rows of narrowly elongated cells......... 4
3. Leaf margins clearly bordered by 2–4 rows of elongated, narrowed cells throughout................................5
4. Leaves narrowly ovate or spathulate, obtuse at apex; setae mammillose; calyptra hairy............. 4. O. loheri
4. Leaves broadly ovate, acute to acuminate at apex; setae and calyptra smooth................ 6. O. piliferum
5. Leaf apices obtuse; costae ending above the mid-leaf, but well below the apex................2. O. dilatatum
5. Leaf apices acute; costae ending just below the apex or percurrent............................... 6
6. Leaf borders often partly bistratose; calyptra hairy.............................................1. O. bryoides
6. Leaf borders unistratose throughout; calyptra smooth.......................................5. O. nudum
 

 

 
 
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