Pohlia proligera

(Kindberg) Lindberg ex Arnell

Bot. Not. 1894: 54. 1894.

Illustrated
Basionym: 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 orangebrown. 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 yellowbrown, 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.

"keeled" is not a number."narrow" is not a number.

... more about "Pohlia proligera"
erect;widespreading +
A. Jonathan Shaw +
(Kindberg) Lindberg ex Arnell +
dioicous +  and sexual +
reduced +
brown;reddish +
not +  and decurrent +
Webera proligera +
cucullate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
brown;stramineous +
long-exserted +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rudimentary +
not +  and nodulose +
short-excurrent +  and percurrent +
subpercurrent +
linear-rhomboidal +, rhombic +  and elongate-hexagonal +
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 +
dark reddish-brown +, pale-yellow +  and brown +
triangular-acute +
short-rectangular +
Acid, sandy disturbed soil, path banks, stream banks +
lanceolate +
vegetative +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
not differentiated +
entire;finely serrate;serrulate +
serrulate to serrate +
slightly narrower and longer +
undifferentiated +
autoicous +, paroicous +, dioicous +  and sexual +
short-rectangular +  and quadrate +
1+ times urn length +
differentiated +
convex-conic +
lateral +  and terminal +
lateral +  and terminal +
diplolepidous-alternate +
Capsules mature summer (Jun–Aug). +
smooth;papillose +
spheric;ovoid +
orangebrown +
straight +
Illustrated +
darker +, hyaline +, tan +  and pale-yellow +
not complanate-foliate +
short to long +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
superficial +
Pohlia proligera +
species +
not +  and trabeculate +
papillose +  and pitted +
triangular;lanceolate +
reduced +
multicellular +
spheric;ovoid +
extensive +
collenchymatous +
straight +
specialized +
sinuate +