Difference between revisions of "Seligeria diversifolia"
Öfvers. Kongl. Vetensk.-Akad. Förh. 18: 281. 1861,.
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Latest revision as of 21:26, 5 November 2020
Plants tiny, olive green. Leaves ovate-oblong to broadly ligulate, gradually narrowed, obtuse, costa ending before apex, margins entire; leaf cells (1–)2:1; perichaetial leaves sharply contracted to stout, short subula from clasping base, strongly differentiated. Seta 2–2.5 mm, twisted, curved when moist, ± straight when dry, slender. Capsule ovate-oblong to oblong, longer than broad, not widest at mouth; peristome of 16 well-developed teeth; columella immersed. Spores 9–11 µm.
Habitat: Stones, cliff faces
Distribution
N.B., Que., Yukon, Alaska, Europe, Asia.
Discussion
Seligeria diversifolia occurs on stones in arctic Alaska, then south along the western mountains into the Yukon, and is found on cliff faces from a few stations in eastern North America. It is slender and stiff with differentiated perichaetial leaves, and a straight to slightly curved seta when moist, while the similar S. campylopoda has curved-twisted leaves, no differentiated perichaetial leaves, and a markedly curved seta when moist.
Selected References
None.