All Floras      Advanced Search
FNA Vol. 27 Page 320, 381 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 27

19. Seligeriaceae Schimper

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-recurved, 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, these reduced in some species, or absent.

Genera 4, species ca. 44 (3 genera, 16 species in the flora): widespread in temperate and polar regions.

Sporophytes are necessary for identifying the species of Seligeriaceae.

1 Capsules striate; peristome finely papillose or absent; annulus well-developed; calyptra mitrate   3 Brachydontium, p. 327
+ Capsules smooth; peristome smooth or absent; annulus ill-formed; calyptra cucullate   (2)
2 (1) Alar cells not differentiated or sometimes enlarged; autoicous; calcareous rocks.   1 Seligeria, p. 320
+ Alar cells reddish and inflated; dioicous; acid rocks.   2 Blindia, p. 327

Lower Taxa


 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |