Macrocoma (hornsch. ex Müll.hal.) Grout

Macrocoma moss (en)

Genus

Bryophytes > Orthotrichales > Orthotrichaceae

Characteristics

Plants small, in mats. Stems creeping, branches ascending. Leaves closely erect-appressed, not contorted when dry, erect-spreading when moist, lanceolate to ovate-lanceolate, not rugose; margins entire; apex acute to narrowly obtuse [bluntly acuminate]; costa percurrent; basal laminal cells rounded to elliptic; distal cells rounded-quadrate, 7-12 µm, , smooth [papillose only over lumina]; marginal cells not distinct from basal. Sexual condition gonioautoicous; perichaetial leaves longer than branch leaves. Seta 4-6.5 mm. Capsule exserted, oblong-cylindric to fusiform, ± plicate distally or not, not constricted below mouth; stomata superficial; peristome single, of exostome or endostome; exostome teeth 16, blunt, short, papillose; or endostome basal membrane low, papillose. Calyptra mitrate, long elliptic-conic, basal lobes many, smooth, ± hairy, obscurely plicate, covering capsule. Spores isosporous, .
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