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Meesiaceae Schimp. Search in NYBG Virtual Herbarium Decrease font Increase font Restore font
 

Publicado en: Corollarium Bryologiae Europaeae 82. 1856. (Coroll. Bryol. Eur.) Name publication detail
 

Datos del Proyecto Nombre (Last Modified On 2/20/2009)
Aceptación : Accepted
Datos del Proyecto     (Last Modified On 3/18/2009)
General Reference:

Notas     (Last Modified On 3/18/2009)
general taxon notes:

 

There are three genera in the Meesiaceae worldwide (Crosby et al. 2000). Two genera are recognized in China, mostly occurring in cold, temperate mountains.

 

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Meesiaceae
寒藓科   han xian ke
by Li Xing-jiang and Si He
 
 
Plants small to rather robust, green or yellowish green, in dense tufts. Stems erect, with innovated branches below gametophores, radiculose throughout or only near the base; central strand differentiated. Leaves usually in 3–8 ranks, erect-patent or squarrose, oblong-ovate or lanceolate; margins not bordered; serrulate near apex, rarely serrulate throughout; costae single, strong, ending below the apex, in cross section with a ventral stereid band; leaf cells rounded, quadrate or hexagonal, thick-walled, smooth or mammillose; basal cells narrowly rectangular, hyaline, thin-walled. Autoicous or dioicous. Setae elongate, straight; capsules erect, long-pyriform, curved, mouth oblique, small; neck elongate; opercula conic at base, bluntly apiculate; annuli small, 1–2 rows, deciduous; peristome double; exostome teeth sometimes fused at base, with a median zigzag line, trabeculate on inner surface; endostome segments linear, as long as the teeth or longer, perforate; basal membrane low; cilia absent or reduced. Calyptrae small, cucullate, smooth. Spores spherical, papillose.
 

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1. Leaves erect or somewhat squarrose; leaf cells smooth; endostome segments twice as long as the exostome teeth or longer............................................................................................................................................ 1. Meesia
1. Leaves strongly squarrose-recurved from erect bases; leaf cells mammillose on both surfaces; endostome segments about as long as the exostome teeth................................................................................... 2. Paludella
 
 
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