Home Moss Flora of China
Name Search
About
Moss Checklist
Moss Flora
Guide to Authors
Participants
Glossary
Trachypodaceae M. Fleisch. Search in NYBG Virtual Herbarium Decrease font Increase font Restore font
 

Published In: Hedwigia 45: 63. 1906[1905]. (Hedwigia) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 12/20/2012)
Acceptance : Accepted
Project Data     (Last Modified On 12/16/2011)
General Reference:
Contributor: Wu, Peng-Cheng

Notes     (Last Modified On 12/16/2011)
general taxon notes:
Six genera were placed in this family by Brotherus (1925) and P.-C. Chen et al. (1978). This family has a distribution center mainly in the tropical and subtropical regions of the world. Among the six genera, the genus Pseudotrachypus P. de la Varde & Thér. occurs only in Central America. Five genera are known in China.

 

Export To PDF Export To Word
Trachypodaceae
扭叶藓科   niu ye xian ke
by Wu Peng-cheng
 
 
Plants often elongate, very slender, soft or rigid, green, light yellow to brownish green, or sometimes blackish, not glossy. Primary stems creeping, often covered with scale-like leaves, with dense reddish brown rhizoids at the base; secondary stems ascending or pendulous, rarely dendroid, to ca. 10 cm long or longer, loosely to irregularly or densely, regularly pinnately branched, often terete, rarely complanate, sometimes with flagelliform branches; a central strand present or absent; pseudoparaphyllia absent. Leaves appressed when dry, usually erect-spreading, sometimes reflexed above when moist, ovate, ovate-lanceolate, lanceolate, or broadly ovate, plicate or undulate, rarely auriculate at the base, acuminate above, often slenderly tapering or twisted at the apex; branch leaves smaller, sometimes dimorphic; margins serrulate or dentate; costae single, slender, vanishing above the mid-leaf; leaf cells hexagonal, oblong-oval, rhomboidal to nearly linear, unipapillose or pluripapillose, or with dense, minute papillae along cell walls, rarely smooth, thin-walled or thick-walled, or sometimes distinctly porose; marginal cells indistinctly or clearly differentiated; alar cells differentiated or scarcely differentiated. Dioicous. Setae short to elongate, smooth, rarely mammillose; capsules ovoid or subglobose or cylindrical; opercula conic, obliquely rostrate; annuli absent or scarcely differentiated; peristome double; exostome teeth lanceolate, papillose; endostome segments narrowly lanceolate to linear-lanceolate, as long as or shorter than the teeth, or reduced, smooth or papillose; basal membrane low or high, smooth or finely papillose; cilia developed or rudimentary. Calyptrae cucullate, smooth or hairy. Spores spherical, minutely papillose.
 

Export To PDF Export To Word
1. Leaf cells pluripapillose, with papillae in rows along lateral walls; endostome segments reduced................ 5. Trachypus
1. Leaf cells unipapillose or with several papillae over lumen, or smooth; endostome segments well developed.......................................................2
2. Plants robust to very robust; stems simple, remotely, irregularly branched; leaves strongly reflexed above, sheathing at the base; capsules ovoid.......................................................................... 3. Pseudospiridentopsis
2. Plants slender or robust; stems remotely or densely irregularly pinnately, sometimes regularly bipinnately to tripinnately branched; leaves not reflexed above or sheathing at the base; capsules mostly cylindrical, sometimes subglobose..................................................................................................................... 3
3. Stem and branch leaves dimorphic; stems regularly bipinnately to tripinnately branched..... .1. Diaphanodon
3. Stem and branch leaves more or less similar; stems irregularly branched......................................................... 4
4. Leaves not or somewhat auriculate at the base; not or only slightly plicate, rarely distinctly longitudinally plicate; leaf cells usually ca. 6 times as long as wide; setae up to 5 cm long, smooth; endostomal cilia 3, well developed............................................................................ 2. Duthiella
4. Leaves clearly auriculate at the base; often distinctly longitudinally plicate; leaf cells usually 10 times as long as wide; setae less than 1.8 cm long, mammillose; endostomal cilia absent....................................................................................................................................  4. Trachypodopsis
 
 
© 2014 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110