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Calyptothecium 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: 190. 1868. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 12/16/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/14/2011)
general taxon notes:
There are some 30 species listed for this genus in the world (Crosby et al. 2000); about half of them are well understood. Seven species are known in China. Calyptothecium duplicatum (Schwägr.) Broth. reported by R.-L. Hong and R.-L. Hu (1984) from Zhejiang Province is doubtful. It is basically a South American species. We cannot verify any Chinese specimens of this species. Calyptothecium prainii Broth. ex Gangulee reported from Yunnan Province by L. Zhang (1990) and C. ramosii Broth. reported from Hainan and Taiwan Islands by Redfearn et al. (1996) cannot be confirmed at this time.

 

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1. Calyptothecium Mitt.   耳平藓属   er ping xian shu
J. Linn. Soc., Bot. 10: 190. 1868. Pterobryon subgen. Calyptothecium (Mitt.) Mitt., Trans. Roy. Soc. Victoria 19: 81. 1882. Neckera sect. Calyptothecium (Mitt.) Besch., Ann. Sci. Nat., Bot., sér. 6, 10: 273. 1880. Pterobryon sect. Calyptothecium (Mitt.) Mitt., J. Linn. Soc. Bot. 12: 425. 1869.
 
Plants large, glossy, often forming large mats, sometimes pendulous. Primary stems creeping, with small, scale-like leaves and brownish rhizoids, sometimes with flagelliform stolons; secondary stems often pendulous, loosely irregularly branched, sometimes densely regularly or pinnately branched; paraphyllia rare. Leaves laxly or densely erect-spreading, complanately arranged, usually ovate or ovate-lingulate, symmetric or asymmetric, undulate, often plicate, shortly broadly acute at the apex, often auriculate or cordate at the base; margins entire, or denticulate above; costae single, extending to the mid-leaf or leaf apex, rarely absent; leaf cells smooth, often thick-walled, porose; upper cells narrowly short-rhomboidal; basal cells lax, elongate, reddish brown; alar cells scarcely differentiated. Dioicous. Setae very short; capsules immersed, ovoid or oblong-ovoid; opercula conic, shortly rostrate; annuli not developed; stomata none; peristome double; exostome teeth linear-lanceolate, often perforate along the median line, smooth; endostome segments linear, longer than the teeth; basal membrane not developed. Calyptrae small, cucullate, divided at the base, smooth or hairy. Spores large, finely papillose.
 
 

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1. Leaves ecostate................................................................................................................................ 1. C. acostatum
1. Leaves costate.......................................................................................................................................................... 2
2. Leaves slenderly lingulate................................................................................................. 4. C. phyllogonoides
2. Leaves ovate, oblong-cordate.............................................................................................................................. 3
3. Leaves stiff, not complanate; gemmae abundant................................................................................................... 4
3. Leaves soft, complanate; gemmae rare or absent.................................................................................................. 5
4. Auricles of the leaf bases strong, large, dentate at margins; gemmae germinating without tubular rhizoids.
........................................................................................................................................................... 2. C. auriculata
4. Auricles of the leaf bases small, not dentate at margins; gemmae germinating with tubular rhizoids............
............................................................................................................................................................. 7. C. wightii
5. Plants usually up to 11 cm long, pinnately branched; leaves slightly auriculate at the base...... 5. C. pinnatum
5. Plants usually up to 30 cm long, loosely or irregularly branched; leaves moderately to broadly auriculate at the base...................................................................................................................................................................... 6
6. Leaves ovate, shortly acute or acuminate at the apex, moderately auriculate at the base, the auricles not clasping the stems and branches; leaf margins denticulate above; prostome weakly developed, less than 1/5 the length of the exostome teeth.............................................................................................. 3. C. hookeri
6. Leaves oblong-ovate, obtuse or obtusely apiculate at the apex, very broadly auriculate at the base, the auricles clasping the stems and branches; leaf margins indistinctly denticulate above; prostome well developed, ca. 1/2 the length of the exostome teeth.......................... 6. C. recurvulum
 
 
 
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