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Published In: Bryologia Europaea 2: 156 (fasc. 29–31. Monogr. 4). 1846. (Bryol. Eur.) Name publication detail

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

The distichous leaves and strongly clasping leaf bases of this species give the stems a smooth, flat appearance that may be mistaken for Fissidens, but the leaves lack vaginant laminae. The leaves are distinctive in their long, roughened, widely spreading subulae (more than twice the length of leaf base) that are abruptly contracted from sheathing, white bases. A distichous habit is also found in Bryoxiphium (not yet known from Central America but present in Mexico) and Eustichium, but these genera have apiculate leaves. The only other Central American moss with strongly ranked leaves, Tristichium mirabile, has three-ranked, tightly appressed leaves that lack subulae.

Illustrations: Grout (1903, Fig. 34); Bartram (1949, Fig. 12 A–C); Sainsbury (1955, Pl. 11 1); Smith (1978, Fig. 47 1–3); Gangulee (1971, Fig. 96); Magill (1981, Fig. 25 1–19); Crum and Anderson (1981, Fig. 58 A–D); Ireland (1982, Pl. 64 1–10); Noguchi (1987, Fig. 47); Matsui and Iwatuski (1990, Fig. 7).
Habitat: On rocks in forest; 3300 m.
Distribution in Central America:

GUATEMALA. Huehuetenango: Standley 81627 (F, FH).

World Range: Subarctic America, Western and Eastern Canada, Northwestern, North-Central, Northeastern, and Southwestern U.S.A.; Mexico; Central America; Western and Southern South America; Northern, Southwestern, Middle, East, and Southeastern Europe; Western Asia, Caucasus, Soviet Middle Asia, Siberia, Soviet Far East, Mongolia, China, Eastern Asia; Indian Subcontinent, Malesia; Northern Africa, West-Central and East Tropical Africa, Southern Africa, West Indian Ocean; Australia, New Zealand; Antarctica.


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Distichium capillaceum (Hedw.) B.S.G., Bryol. Eur. 2: 156. 1846. Cynontodium capillaceum Hedw., Sp. Musc. Frond. 57. 1801. Syntypes. Germany, Sweden.

Plants green to yellow-green, 1–6 cm long. Leaves horizontally spreading, oblong-lanceolate, 3–5 mm long; margins erect, hyaline-bordered at base; upper laminal cells small, subquadrate to short rectangular, coarsely papillose; basal cells linear to oblong-linear, hyaline, smooth. Setae 8–20 mm long, red to reddish brown (occasionally yellowish); capsules erect to slightly inclined, cylindrical, 1–2 mm long, brown; peristome teeth lanceolate, split or perforate nearly to the base into 2 nearly equal divisions, papillose-roughened or smooth with oblique striations. Spores rounded, 16–25 µm, papillose.


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