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Forsstroemia Lindb. 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: Öfversigt af Förhandlingar: Kongl. Svenska Vetenskaps-Akademien 19(10): 605. 1862[1863]. (Öfvers. Förh. Kongl. Svenska Vetensk.-Akad.) Name publication detail
 

Project Name Data (Last Modified On 12/15/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/13/2011)
general taxon notes:
Stark (1987) recognized 10 species in Forsstroemia worldwide, including F. tripinnata (Dixon) Nog.; however, Noguchi and X.-J. Li (1988) treated the latter as a synonym of Pseudopterobryum tenuicuspis Broth. in the Pterobryaceae. Six species are known in China. Manuel (1974) moved Brotherus’s subfamily Alsioideae to the Leucodontaceae, including Alsia Sull., Forsstroemia, Dendroalsia E. Britton, and Bestia Broth. Several authors (Buck & Goffinet 2000; Enroth 1992a; Stark 1987) have treated Forsstroemia in the Leptodontaceae; however, it is here left in the Cryphaeaceae, following the system of P.-C. Chen et al. (1978), a modified system of Brotherus’s classification.
 

 

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3. Forsstroemia S.O. Lindberg   残齿藓属   can chi xian shu
Öfvers. Förh. Kongl. Svenska Vetensk.-Akad. 19: 605. 1863.
 
Plants slender to rather robust, green, yellowish green or brown. Primary stems creeping; secondary stems loosely or pinnately branched; central strand absent; paraphyllia absent; pseudoparaphyllia foliose or filamentous; axillary hairs 7-cells long, with 4 brownish basal cells, upper 3 cells hyaline. Stem leaves loosely appressed or imbricate when dry, erect-spreading when moist, oblong-ovate, concave, shortly acute or narrowly acuminate; margins slightly recurved, serrulate at the apex; costae short, slender or thick, single or forked, reaching mid-leaf or beyond; leaf cells evenly thick-walled, smooth; median cells elliptical to narrowly rectangular; basal juxtacostal cells elongate; alar cells irregularly hexagonal or nearly quadrate, numerous; branch leaves similar to stem leaves, but smaller. Autoicous, rarely dioicous. Inner perichaetial leaves large, sheathing at the base, long acuminate at the apex; costae absent. Setae short, smooth, red; capsules immersed or exserted, cylindrical, erect, brown to reddish brown, smooth; opercula conic at the base, shortly rostrate; annuli absent; stomata few; peristome double; exostome teeth narrowly lanceolate, yellow, rarely reddish brown below, hyaline, densely papillose above; endostome segments reduced or absent. Calyptrae cucullate, hairy or naked. Spores spherical, papillose.
 
 

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1. Leaf cells isodiametric or shortly oblong; costae strong, single........................................................................ 2
1. Leaf cells rhomboidal or linear; costae slender, single or double....................................................................... 4
2. Autoicous; sporophytes common; leaves gradually acuminate above........................................ 5. F. producta
2. Dioicous; sporophytes rare; leaves slenderly acuminate above....................................................................... 3
3. Leaves usually more than 1 mm long, often twisted near the apex; apical leaf cells longer than median leaf cells..................................................................................................................................................................................
................................................................................................................................................................... 2. F. indica
3. Leaves less than 1 mm long, not twisted near the apex; apical and median leaf cells similar...................... 1. F. cryphaeoides
4. Autoicous, sporophytes common............................................................................................ 6. F. trichomitria
4. Dioicous, sporophytes rare................................................................................................................................. 5
5. Plants densely pinnately branched; costae single, reaching mid-leaf, rarely double.............. 3. F. neckeroides
5. Plants irregularly pinnately branched; costae single or double, ending below mid-leaf.............. 4. F. noguchii
 
 
 
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