Bucklandiella occidentalis (Renauld & Cardot) Bednarek-ochyra & Ochyra

Species

Bryophytes > Grimmiales > Grimmiaceae > Bucklandiella

Characteristics

Plants fairly robust, rigid and coarse, in loose tufts or patches, olive green distally, brown proximally. Stems 2-4(-8) cm, erect-ascending to erect or prostrate, sparingly irregularly branched. Leaves erect-appressed when dry, erect-spreading to patent when moist, straight to slightly curved, narrowly lanceolate, (2.2-)2.8-3.5(-3.8) × 0.5-0.8 mm; margins variously recurved on both sides to 1/2-3/4 of the way up the leaf, lumpy and wavy, 2-stratose distally in 1-2(-4) cells rows, occasionally with 3-4-stratose spots, variously 1-2-stratose in the proximal portion; pilose, awns hyaline, 0.3-0.8 µm, terete, erect, slightly flexuose to recurved when dry, sharply spinulose-denticulate, not decurrent; costa percurrent, in transverse-section strongly convex on the abaxial side, distinctly asymmetric in outline, with a more or less continuous central abaxial groove and with indistinct lateral furrows in places, (60-)70-90(-110) µm wide in the proximal portion, (40-)45-65 µm wide near the apex, 3-5-stratose in the base with (2-)3-4(-5) adaxial cells, 3-4-stratose with 2-4 adaxial cells in the median part and 2-3-stratose distally with 2-3 adaxial cells; laminal cells smooth, 1-stratose with occasional 2-layered strands; basal laminal cells elongate, 25-60 × 8-10 µm, nodulose-sinuose; alar cells slightly differentiated; medial and distal laminal cells quadrate to rectangular, 9-25 × 8-10 µm, usually becoming oblate at the margins. Inner perichaetial leaves undifferentiated, lanceolate, pilose. Seta yellowish brown to brown, 4-7 mm. Capsule brown, weakly lustrous to dull, narrowly ovoid to cylindric, somewhat wrinkled, 1-3 × 0.4-0.6 mm; operculum conical-rostrate, with a straight or somewhat oblique beak; peristome teeth lanceolate, 310-550 µm, brown, papillose, imperfectly split distally into 2 prongs or only perforated, arising from a low basal membrane, 20-35 µm high. Spores 12-17 µm.
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Foliage retention deciduous
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Cultivation

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Identifiers

LSID 35214920
WFO ID wfo-0001212374
COL ID 4R8PX
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Racomitrium occidentale Bucklandiella occidentalis Racomitrium heterostichum var. occidentale Racomitrium sudeticum var. occidentale