Grimmia brittoniae R.S.Williams

Britton's dry rock moss (en)

Species

Bryophytes > Grimmiales > Grimmiaceae > Grimmia

Characteristics

Plants in extremely hoary, compact glaucous cushions, brown inside. Stems 2-3 cm, central strand absent. Leaves loosely appressed to slightly contorted when dry, erectopatent when moist, lanceolate, 0.5-1 × 0.3-0.4 mm, keeled, margins narrowly recurved on both sides, awns 2-4 mm, smooth, flattened proximally, decurrent, costa weak, projecting on abaxial side; basal juxacostal laminal cells rectangular, straight to slightly sinuose, thick-walled; basal marginal laminal cells quadrate with thickened transverse walls; medial laminal cells short-rectangular, slightly sinuose, thick-walled; distal laminal cells 1-stratose, margins 1-stratose. Gemmae absent. Sexual condition dioicous. Seta flexuose, 2 mm. Capsule occasionally present, exserted, brownish, ovoid, wide-mouthed, exothecial cells thin-walled, annulus present, operculum conical, peristome teeth yellow, split and perforated distally, slightly papillose.
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Identifiers

LSID 35146547
WFO ID wfo-0001173368
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Grimmia brittoniae