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FNA | Family List | FNA Vol. 27 | Dicranaceae | Kiaeria

4. Kiaeria glacialis (Berggren) I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim). 1914: 125. 1915.

Dicranum glaciale Berggren, Acta Univ. Lund. 2(7): 19, figs. 1-9. 1866; D. arcticum Schimper; D. molle (Wilson) Lindberg

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.

Soil over rock; mostly alpine elevations, occasionally subalpine; Greenland; Nfld. and Labr. (Nfld.), N.W.T., Que., Yukon; Alaska; Europe.

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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