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FNA | Family List | FNA Vol. 27 | Seligeriaceae | Seligeria

8. Seligeria oelandica C. E. O. Jensen & Medelius, Bot. Not. 1929: 42, fig. 1. 1929.

Plants small, dark-brown to blackish. Leaves lanceolate, stoutly subulate from oblong base, narrowly obtuse; costa ending in apex, filling subula; margins entire; leaf cells (1-)2:1; perichaetial leaves somewhat larger, similar to vegetative leaves, not much differentiated. Seta 0.8-1.2 mm, straight to slightly curved, stout. Capsule hemispheric-obovate to turbinate and flaring at mouth when old; peristome reduced to 16, short, blunt teeth; columella exserted. Spores (20-)23-28(-30) ┬Ám.

Calcareous substrates; N.W.T., Que., Yukon; Alaska; Europe.

Seligeria oelandica is rare and disjunctive, known only from a few stations in eastern Quebec and from several localities in Alaska, Northwest Territories, and the Yukon. It is distinguished from its closest relative, S. tristichoides, by the branched turf-forming habit, twisted-curved leaves, pronounced turbinate capsules, larger spores, and reduced peristome. The spores are the largest in the genus; that and the persistent columella distinguish this species from all others.


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