Grimmia olneyi Sull.

Olney's dry rock moss (en)

Species

Bryophytes > Grimmiales > Grimmiaceae > Grimmia

Characteristics

Plants in flat patches, dark green to brownish black. Stems 1-2 cm. Leaves narrowly ovate-lanceolate from an ovate base, 2-3 × 0.4-0.8 mm, both margins incurved, intermarginal bands absent, awn 0.1-0.5 mm, not decurrent, acute, costa narrow proximally; basal juxtacostal laminal cells quadrate to short-rectangular, straight, thick lateral walls, green; basal marginal laminal cells quadrate, straight, thick transverse and thin lateral walls, green, hyaline; medial laminal cells quadrate, slightly thick-walled; distal laminal cells 2-4 stratose, rounded, thick-walled. Perichaetial leaves not enlarged. Seta sigmoid, 3-4 mm. Capsule occasionally present, exserted, brown, oblong-ovoid, exothecial cells short-rectangular, thin-walled, stomata present, annulus of 2-3 rows of rectangular, thick-walled cells, operculum long-rostrate, peristome perforate in distal half, split in distal half. Calyptra cucullate.
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Identifiers

LSID 35147123
WFO ID wfo-0001173711
COL ID 6KSQG
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Grimmia austinii Grimmia olneyi