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Leaves

with basal laminal cells bulging, papillose-mammillose.

Seta

dextrorse, smooth.

Capsule

1.3–2 mm;

exothecial cells not or slightly differentiated;

peristome consisting of low papillose membrane.

Calyptra

often splitting by one cleft along one rib.

Macrocoma tenuis

Distribution
se United States; Mexico; Central America; South America; West Indies; Asia; s Africa; Pacific Islands (New Zealand); Australia
Discussion

Subspecies 2 (1 in the flora).

Subspecies tenuis is Old World in distribution.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 28, p. 43.
Parent taxa Orthotrichaceae > Macrocoma
Subordinate taxa
M. tenuis subsp. sullivantii
Synonyms Orthotrichum tenue
Name authority (Hooker & Greville) Vitt: Rev. Bryol. Lichénol. 39: 217. (1973)
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