Pohlia andalusica

(Höhnel) Brotherus in H. G. A. Engler and K. Prantl

in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 218[I,3]: 551. 1903.

Basionym: Webera andalusica Höhnel Sitzungsber. Kaiserl. Akad. Wiss., Wien, Math.-Naturwiss. Cl., Abt. 1, 104: 326. 1895
Treatment appears in FNA Volume 28. Treatment on page 206. Mentioned on page 194.

Plants small to medium-sized, green, ± glossy. Stems 0.3–3 cm. Leaves ± erect, lanceolate, 0.8–1.1 mm; margins serrulate to serrate in distal 1/3; costa subpercurrent; distal medial laminal cells rhombic to rhomboidal, 65–95 µm, walls thin. Specialized asexual reproduction usually present when sterile; axillary gemmae 2–8, obconic to oblong, shorter than leaves, yellow, pink, or green, leaf primordia usually at apex, occasionally more proximally, laminate. Sexual condition dioicous; perigonial leaves ovate; perichaetial leaves scarcely differentiated, 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, gravelly or sandy disturbed soil, path banks, stream banks
Elevation: low to high elevations

Distribution

V28 328-distribution-map.gif

Alta., B.C., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Yukon, Alaska, Calif., Colo., Idaho, Maine, Mass., Mont., N.Y., Pa., Vt., Wash., Wyo., Europe

Discussion

Plants of Pohlia andalusica have pink stems. The gemmae occur in clusters of two to six in a few distal leaf axils and are reddish brown to green or sometimes reddish yellow. The gemmae are obconic in shape, with laminate leaf primordia at the apices. Pohlia andalusica is one of the most common gemmiferous species in New England, but is much more rare in western North America.

Selected References

None.

Lower Taxa

None.

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

... more about "Pohlia andalusica"
erect;widespreading +
A. Jonathan Shaw +
(Höhnel) Brotherus in H. G. A. Engler and K. Prantl +
green +, pink +  and yellow +
obconic +  and oblong +
reduced +
brown;reddish +
not +  and decurrent +
Webera andalusica +
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 +
Alta. +, B.C. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Maine +, Mass. +, Mont. +, N.Y. +, Pa. +, Vt. +, Wash. +, Wyo. +  and Europe +
low to high elevations +
dark reddish-brown +, pale-yellow +  and brown +
triangular-acute +
short-rectangular +
Acid, gravelly or sandy disturbed soil, path banks, stream banks +
dioicous +  and sexual +
lanceolate +
vegetative +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 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). +
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. +
smooth;papillose +
spheric;ovoid +
orangebrown +
straight +
darker +, hyaline +, tan +  and pale-yellow +
not complanate-foliate +
short to long +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
superficial +
Pohlia andalusica +
species +
not +  and trabeculate +
papillose +  and pitted +
triangular;lanceolate +
reduced +
multicellular +
spheric;ovoid +
extensive +
collenchymatous +
straight +
specialized +
sinuate +
small;medium-sized +