Comments
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Kiaeria glacialis is a large species that is found in late snowbeds and is similar to K. starkei, which is more slender and is commonly found on vertical rock surfaces. A form of K. starkei occasionally occurs in late snowbeds, but it has small, erect-spreading dark green leaves; K. falcata also occurs in late snowbeds, but can be distinguished in the field by its short, non-grooved capsules.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Plants robust, in loose tufts, mostly green to yellow, shiny. Stems 1-2(-4) cm. Leaves mostly falcate-secund, lanceolate, gradually subulate, 2-4.5 mm, margins distally 1 or 2-stratose; costa 50-60 µm wide at base; distal laminal cells mostly elongate (2-5:1), porose, 7-9 µm wide, smooth or weakly mammillose-roughened; basal laminal cells elongate, porose, alar cells strongly inflated and differentiated. Perichaetial leaves similar to the cauline. Perigonia sessile, located just below perichaetia. Capsule distinctly ribbed when dry, urn 1.3-2 mm. Spores 14-20 µm.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Plants rather robust, 4–10(–12) cm high, green to yellowish green or dull green, somewhat glossy, in compact tufts. Stems erect or ascending, often branched. Leaves 4–6 mm long, erect-patent, upper leaves falcate-secund, lanceolate, gradually narrowed from an ovate base to an subulate acumen toward the apex; margins plane, entire or serrulate near the apex; costa weak and slender, percurrent to shortly excurrent, papillose at the apex; upper cells elongate-rectangular, smooth, more or less porose; basal cells short-rectangular to rounded-rectangular; alar cells quadrate, inflated, forming distinctly auricles, dark brown, extending close to the costa. Autoicous. Androecia closely below the perichaetia. Perichaetial leaves large, sheathing at base. Setae ca. 1.5 cm long, straight, yellowish brown; capsules ovoid-cylindric, curved, strumose, furrowed when dry; exothecial cells elongate, somewhat thick-walled; opercula obliquely short-rostrate; annuli in 1 row of large cells, deciduous; peristome teeth reddish purple, divided 1/3– ½ down. Spores 12–20 µm in diameter, yellowish green, finely papillose.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
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Distribution: China, Russian Far East, Europe, and North America.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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Habitat: on limestome, rarely on soil.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
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Dicranum glaciale Berggren, Acta Univ. Lund. 2(7): 19, figs. 1-9. 1866; D. arcticum Schimper; D. molle (Wilson) Lindberg
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA