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Published In: Muscologia Recentiorum 2(1): 24. 1798. (Muscol. Recent.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 3/22/2011)
Acceptance : Accepted
Project data     (Last Modified On 3/23/2011)
Discussion:

Sphagnum magellanicum normally grows exposed to the sun and develops a reddish color in response to insolation. It has cortical cells of stems and branches delicately fibrillose. The branch leaves have hyaline cells flat on both surfaces and green cells, in section, central and entirely included. The branch leaves of Sphagnum alegrense Warnst. have fine, vermiform ridges on the walls of the hyaline cells where they lie adjacent to green cells, and the cortical cells of stems and branches essentially lack fibrils. The species is known from Brazil, Venezuela, Guadeloupe, and Dominica. A report from Panama (Allen 1986) can be referred to S. perichaetiale.

Illustrations: Crum (1980, Fig. A); Crum and Anderson (1981, Fig. 1 A–G); Crum (1984, Fig. 1).
Habitat: At moderate or (more commonly) high elevations, usually 2300–3900 m, rarely as low as 1000 m.
Distribution in Central America:

GUATEMALA. Huehuetenango: Steyermark 49921 (NY). HONDURAS. Lempira: Allen 11497 (MICH, MO, TEFH); Olancho: Allen 12619 (MICH, MO, TEFH). NICARAGUA. Jinotega: Moreno 7804 (MO). COSTA RICA. Alajuela: Richards 6234 (MICH); Cartago: Crosby & Crosby 5763 (MO); Limón: Davidse & Herrera 29311 (MO); Puntarenas: Davidse et al. 26099 (MO); San José: Crosby & Crosby 5735 (MO). PANAMA. Bocas del Toro: Gómez et al. 22577 (MICH); Coclé: McPherson 11244 (MO); Darién: Mori & Gentry 4353 (MO); Veraguas: Mori 7604 (MO).

World Range: Subarctic America, Western and Eastern Canada, Northwestern, North-Central, Northeastern, Southwestern, South-Central, and Southeastern U.S.A.; Mexico; Central America; Caribbean, Western, Northern, and Southern South America, Brazil; Northern, Southwestern, Middle, East and Southeastern Europe; Caucasus, Soviet Middle Asia, Siberia, Soviet Far East, Mongolia, China, Eastern Asia.

 

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Sphagnum magellanicum Brid., Musc. Recent. 2(1): 24. 1798.

Sphagnum aureum McQueen, Bryologist 92: 405. 1989.

Plants stout, in dense, pink, red, or purplish (green if shaded) cushions or hummocks; cortical cells in 3–4 layers, the outermost cells delicately spiral-fibrillose, with 1 (or occasionally 2–4) large, round to elliptic pores; wood cylinder red. Stem leaves more or less flat, oblong-lingulate, rounded at the apex and finely fringed at the margins; hyaline cells not divided, fibrillose near the leaf apex or not at all, largely resorbed on the outer surface, sometimes on both surfaces. Branches stout and tumid, in fascicles of 4–5 (2 spreading); cortical cells fibrillose, sometimes with 1 large, round pore near the upper ends. Branch leaves imbricate or rarely somewhat spreading at the tips, ca. 2 mm long, broadly ovate, deeply cucullate-concave, rough at back of the apex and denticulate along a marginal resorption furrow; hyaline cells plane or nearly so on both surfaces, on the outer surface with 2–10 large, elliptic, ringed pores at ends, corners, and commissures, usually in 3's at adjacent cell angles, on the inner surface with 0–5 round to elliptic pores or pseudopores at corners and commissures in upper and side regions; green cells in section small, elliptic, central and entirely included.
 

 

 
 
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