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Seligeriaceae Schimp.

Dale H. Vitt

Plants minute and gregarious or larger, forming compact tufts and cushions, unbranched to rarely 2--3-branched, on rock, acrocarpous. Leaves twisted-spreading to stiffly erect when dry, generally erect-spreading to spreading, sometimes slightly curved when moist, linear to stoutly subulate from clasping base; margins plane, entire to denticulate; costa single, homogenous in transverse-section, ending near the apex to long-excurrent, distal leaf cells smooth, short; alar cells not differentiated to somewhat enlarged and colored. Seta straight, flexuose or cygneous. Capsule mostly erect, symmetric, cylindric-ovate to turbinate; peristome haplolepideous, of 16 triangular entire teeth or lacking.

Genera 4 (3 in the flora): widely distributed in temperate and polar regions.

1 Capsules striate; peristome finely papillose; annulus well-developed; calyptra mitrate.   Brachydontium
+ Capsules smooth; peristome smooth; annulus ill-formed; calyptra cucullate.   (2)
2 (1) Alar cells not differentiated or sometimes enlarged; dioicous; calcareous rocks.   Seligeria
+ Alar cells reddish and inflated; autoicous; acid rocks.   Blindia

Lower Taxa


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