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Erpodiaceae Broth. Search in NYBG Virtual Herbarium Decrease font Increase font Restore font
 

Published In: Die Natürlichen Pflanzenfamilien I(3): 706. 1905. (Nat. Pflanzenfam.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/10/2011)
Acceptance : Accepted
Project Data     (Last Modified On 12/16/2011)
General Reference:
Contributor: Wang, Mei-Zhi

Notes     (Last Modified On 12/16/2011)
general taxon notes:
There are different opinions concerning the generic classifications of the Erpodiaceae. The family may consist of four or five genera, or even a single genus. Four genera, Aulacopilum Wilson, Erpodium (Brid.) Brid., Venturiella Müll. Hal., and Wildia Broth. are generally accepted in the world (Crosby et al. 2000). A fifth genus, Solmsiella Müll. Hal. is recognized by Pursell and Allen (2002); however, it is sometimes synonymous with Erpodium (Crum 1972; Touw 1992). A single genus, Erpodium, is proposed for the Erpodiaceae by Stone (1997) by synonymizing Aulacopilum, Solmsiella, Venturiella, and Wildia. Here, a five genera classification system is followed. Three genera are known in China.

 

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Erpodiaceae
树生藓科   shu sheng xian ke
by Wang Mei-zhi
 
 
Plants small, slender, soft, bright green to dark green, or grayish green to yellowish green, in loose tufts. Stems creeping, closely attached to substrate when dry, somewhat ascending when moist, irregularly to subpinnately branched, often with a few rhizoids at the base; central strand present or absent. Leaves in 3–4 or more rows, often differentiated into ventral and dorsal leaves, ventral and dorsal leaves dimorphic or more or less similar, imbricate when dry, erect-spreading when moist, sometimes complanate, ovate, oblong-ovate or ovate-lanceolate, concave or plane, not plicate, obtuse, acute or acuminate at the apex; margins entire; costae none; median leaf cells hexagonal or rhombic, smooth or papillose, usually thin-walled; sometimes marginal cells differentiated; alar cells slightly differentiated. Autoicous. Perichaetial leaves large, erect. Setae short or elongate; capsules erect, ovoid or cylindrical, with a short neck; opercula conic at the base, shortly rostrate; annuli well developed or absent; exothecial cells often colored at the mouth; stomata present; peristome absent or with single layer of 16 teeth, straight or curved, lanceolate, papillose. Calyptrae cucullate or mitrate, often split or vertically furrowed. Spores spherical, papillose.
 

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1. Leaf cells smooth; peristome teeth well developed....................................................................... 3. Venturiella

1. Leaf cells finely papillose; peristome teeth highly reduced or absent................................................................ 2

2. Dorsal and ventral leaves more or less similar; leaf apices acuminate................................... 1. Aulacopilum

2. Dorsal and ventral leaves distinctly dimorphic; leaf apices obtuse............................................. 2. Solmsiella

 
 
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