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!Bryum limbatum Müll. Hal. Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Synopsis Muscorum Frondosorum omnium hucusque Cognitorum 2: 573. 1851. (Syn. Musc. Frond.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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Acceptance : Accepted
Project data     (Last Modified On 2/22/2011)
Discussion:

 Bryum limbatum has broad leaves, a well‑developed, unistratose leaf limbidium consisting of narrow, thick‑walled cells, and small, firm‑walled upper and  median leaf cells. It is a semi‑aquatic species that is considerably variable in aspect. In its typical semi-aquatic expression the leaves are well‑spaced along the stem and spreading to weakly contorted when dry. In drier situations, however, the leaves are more closely spaced and erect‑contorted to twisted when dry. There are some forms of this species that closely approach B. renauldii, but in that species the leaf limbidia are nearly absent and the margins entire or obscurely serrulate. Bryum incrassatolimbatum differs from B. limbatum in having thin‑walled, bulging upper leaf cells and a multistratose leaf limbidium that consists of enlarged, thin‑walled cells.
Illustrations: Ochi (1980, Fig. 36 A–J); Sharp et al. (1994, Fig. 347 a–g); Churchill and Linares (1995, Fig. 26 g–i). Figure 148 A–D.
Habitat: On rocks in or along streams; 350‑2000 m.
Distribution in Central America: GUATEMALA. Alta Verapaz: Türckheim (NY); Chiquimula: Steyermark 31124 (F); Huehuetenango: Steyermark 49130 (F). HONDURAS. Cortés: Allen 14358 (MO, TEFH); Comayagua: Allen 11754 (MO, TEFH); Olancho: Allen 12564 (MO, TEFH); Yoro: Allen 13484 (MO, TEFH). COSTA RICA. Alajuela: Crosby & Crosby 6299 (MO); Cartago: Crosby 3623 (MO); Limón: Gómez 24103 (MO). PANAMA. Bocas del Toro: Allen 5138 (MO, PMA); Canal Area: Willis 31 (MO).
World Range: Mexico; Central America; Caribbean, Western and Northern South America, Brazil.

 

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Bryum limbatum C. Müll., Syn. Musc. Frond. 2: 573. 1851.

Protologue: Costa Rica. America centralis, Costa Rica, in reg. montosa inter 5000–8000 ped. elevationis, inter Bartram. sphaericarpam leg. A. S. Oersted mens Febr. 1848. 

Webera mnioides Schimp. ex Besch., Ann. Sci. Nat., Bot. sér. 6, 3: 204. 1876. Bryum mnioides (Schimp.) Broth., Nat. Pflanzenfam. 1(3): 574. 1903, hom. illeg.,  non Gmel. ex With., 1801, nec Wils. 1844. Protologue: Guadeloupe. (L'Herminier, in herb Shimp. [sic.]). 

Plants small to medium-sized, pale green to blackish brown in loose tufts to 3 cm high; rhizoids moderately developed at base. Leaves 1.3–2 mm long, well‑spaced on stem, spreading and somewhat contorted to twisted when dry, erect‑spreading when wet, oval, ovate to oblong; apices rounded‑obtuse or acute; margins recurved below, plane above, bordered by 3–5 rows of long‑rectangular, thick‑walled cells, entire to serrulate; costae percurrent to short‑excurrent; upper cells rhomboidal, firm‑walled, 16–40 μm long, basal cells rectangular, thin‑walled, bulging 40–80 μm long. Dioicous. Setae to 15 mm long, red. Capsules 2.0–2.5 mm long, red, oblong‑cylindrical, suberect to horizontal (occasionally pendent), neck abruptly narrowed and gradually tapering to the seta; opercula 0.5–1.0 mm long, conic apiculate; exostome teeth brown to yellow‑brown, densely papillose, endostome yellowish hyaline, lightly papillose, basal membrane to ½ of exostome teeth length, segments well-developed, narrowly perforate, cilia 2–4, nodose or appendiculate. Spores 13–16 μm, lightly roughened. Calyptra not seen.

 

 

 
 
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