Pohlia pacifica

A. J. Shaw

Contr. Univ. Michigan Herb. 15: 268, fig. 25. 1982.

Treatment appears in FNA Volume 28. Treatment on page 203. Mentioned on page 195.

Plants small, green, very glossy. Stems 0.3–1 cm. Leaves erect to ± spreading, lanceolate, 0.9–1.8 mm; base not or scarcely decurrent; margins serrulate to serrate in distal 1/3, coarsely serrate at apex; costa subpercurrent; distal medial laminal cells linear-vermicular, 110–145 µm, walls thin. Specialized asexual reproduction absent. Sexual condition dioicous; perigonial leaves ovate; perichaetial leaves differentiated, linear-lanceolate. Seta orange-brown. Capsule inclined 120–180°, brown to stramineous, pyriform, neck 1/3 urn length; exothecial cells short-rectangular, walls sinuate; stomata superficial; annulus present; operculum convex-conic; exostome teeth yellow-brown, narrowly triangular-acute; endostome hyaline, basal membrane 1/2 exostome length, segments tapered apically, distinctly keeled, broadly perforate, cilia short to rudimentary. Spores 15–21 µm, finely roughened.

Phenology: Capsules mature spring (Apr–Jun).
Habitat: Acid clay or sandy soil in disturbed places, stream banks, ditches
Elevation: low elevations


V28 322-distribution-map.gif

B.C., Calif., Oreg., Utah, Wash.


Pohlia pacifica is similar to P. lescuriana, but is distinguished by its glossy leaves and longer laminal cells. The perichaetial leaves of P. pacifica are up to 3.2 mm long.

Selected References


Lower Taxa