Bucklandiella macounii (Kindb.) Bednarek-ochyra & Ochyra

Species

Bryophytes > Grimmiales > Grimmiaceae > Bucklandiella

Characteristics

Plants medium-sized to moder-ately robust, rigid, in dense or loose tufts or patches, reddish green, reddish brown, brown or olivaceous at the apices, reddish brown to blackish proximally. Stems 3.5-6(-13) cm, ascending to erect or prostrate, simple or sparsely branched. Leaves erect-appressed, straight to distinctly contorted when dry, erect-patent to spreading when moist, narrowly lanceolate, (1.5-)2.2-3(-3.2) × (0.3-)0.5-0.8 mm; margins broadly or narrowly recurved to 1/2-2/3 of the leaf length on one side, plane or faintly recurved in the broadest part of the leaf on the other side, strongly thickened and bulging, 2(-4)-stratose in (1-)2-3(-6) cell rows distally, 2-stratose in 1-3(-4) cell rows in the median and upper basal parts and 1-stratose close the base; apices gradually tapering at an attenuate point, muticous or piliferous, awns short, to 0.2 mm, terete, reddish or yellowish hyaline, erect to recurved when dry, strongly spinulose, not decurrent; costa percurrent, robust, strongly convex abaxially and rounded to elliptical in outline, 60-100(-150) µm wide basally, 40-70 µm wide near the apex, (3-)4(-5)-stratose with 3-6 larger adaxial cells in the basal part, 3-4-stratose with 3-5(-6) adaxial cells in the middle and (2-)3-4-stratose with 2-4 adaxial cells in the distal part; laminal cells 1-stratose with 2-stratose streaks, smooth or moderately papillose; basal laminal cells rectangular, 25-55 × 8-9 µm, with sinuose-nodulose, thick walls; alar cells undifferentiated; basal marginal cells absent or more or less distinct, composed of 15-40 short, transparent, not or moderately sinuose cells; medial and distal laminal cells irregularly isodiametric to short-rectangular or oblate near the margins, 5-25 × 8-9 µm. Inner perichaetial leaves ovate-lanceolate, without or with a very short hair-point, not or weakly differentiated. Seta brown, 4-7 mm. Capsule brown, slightly glistening, obloid-cylindric, 1-1.9 × 0.5-0.8 mm; operculum stout, convex-conical to shortly rostrate; peristome teeth lanceolate, 330-450 µm, reddish or orange-brown, densely spiculate papillose, variously split into 1-3 prongs, perforated or undivided, arising from a fairly short basal membrane, 35-50 µm high. Spores 12-14 µm.
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Images

Bucklandiella macounii unspecified picture

Identifiers

LSID 35214910
WFO ID wfo-0001212367
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Bucklandiella macounii Racomitrium robustifolium Racomitrium heterostichum var. macounii Bucklandiella macounii subsp. macounii

Lower taxons

Bucklandiella macounii subsp. alpinum