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pyrrhobryum moss

Habit Plants often appearing feathery, dark green and glossy, or occasionally yellowish or brown with age.
Stems

to 6+ cm, occasionally branched, often grooved proximally;

rhizoids dark rust red, papillose.

Leaves

(5–)6–8 × 0.4–0.8 mm;

apex often ending in one double tooth;

laminal cells uniformly subquadrate to short-rectangular, (7–)10–14 µm;

marginal basal cells quadrate to rectangular, 14–30 × 10 µm.

Seta

pale yellowish orange or stramineous, 4–6 cm.

Capsule

(1.5–)2–3 mm, neck short;

operculum 1.5–2 mm;

exostome teeth reddish orange basally, pale yellow or hyaline distally;

endostome segments pale yellow or hyaline, lightly papillose.

Calyptra

3.5 mm.

Spores

16–18 µm.

Pyrrhobryum spiniforme

Phenology Capsules mature Dec–Apr.
Habitat Forests, base of tree trunks, logs, soil
Elevation low elevations
Distribution
from FNA
AL; FL; GA; LA; MS; Mexico; Central America; South America; West Indies; Asia; Africa; Pacific Islands; Australia
Source FNA vol. 28, p. 245.
Parent taxa Rhizogoniaceae > Pyrrhobryum
Synonyms Hypnum spiniforme, Mnium spiniforme, Rhizogonium spiniforme
Name authority (Hedwig) Mitten: J. Linn. Soc., Bot. 10: 174. (1868)
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