Pohlia proligera

(Kindberg) Lindberg ex Arnell
Bot. Not. 1894: 54. 1894.
Illustrated
Basionyms: Webera proligera Kindberg Forh. Vidensk.-Selsk. Kristiania 1888(6): 30. 1888
Treatment appears in FNA Volume 28. Treatment on page 208. Mentioned on page 194, 204.

Plants medium-sized, green, glossy. Stems 0.5–3.5 cm. Leaves ± erect, lanceolate, 0.6–1.6 mm; margins serrulate to serrate in distal 1/3; costa subpercurrent; distal medial laminal cells rhombic to linear-rhomboidal, 60–105 µm, walls thin. Specialized asexual reproduction usually present when sterile; axillary gemmae in dense clusters, oblong-linear to linear-vermicular, white, pale green, or rarely pale orange, hyaline, leaf primordia restricted to apex, erect, peglike, elongate. Sexual condition dioicous; perigonial leaves ovate; perichaetial leaves weakly differentiated, narrowly lanceolate. Seta orange-brown. Capsule inclined 95–180°, 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 distinctly keeled, broadly perforate, cilia short to rudimentary. Spores 16–21 µm, finely roughened.


Phenology: Capsules mature summer (Jun–Aug).
Habitat: Acid, sandy disturbed soil, path banks, stream banks
Elevation: low to high elevations

Distribution

V28 332-distribution-map.gif

Greenland, Alta., B.C., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Alaska, Ariz., Calif., Colo., Idaho, Maine, Mich., Minn., Mont., N.Y., Oreg., S.Dak., Utah, Vt., Wash., Europe.

Discussion

Pohlia proligera is a relatively common species in boreal and high-montane habitats. The leaves are glossy, with dense, feltlike clusters of whitish, pale green, or sometimes pale orange gemmae in their axils. The gemmae are linear-vermicular with one or two peglike apical leaf primordia.

Selected References

None.

Lower Taxa

None.

... more about "Pohlia proligera"
A. Jonathan Shaw +
(Kindberg) Lindberg ex Arnell +
Webera proligera +
Greenland +, Alta. +, B.C. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Maine +, Mich. +, Minn. +, Mont. +, N.Y. +, Oreg. +, S.Dak. +, Utah +, Vt. +, Wash. +  and Europe. +
low to high elevations +
Acid, sandy disturbed soil, path banks, stream banks +
Capsules mature summer (Jun–Aug). +
Illustrated +
Pohlia proligera +
species +