Pohlia bolanderi

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

in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 218[I,3]: 548. 1903.

Illustrated
Basionym: Bryum bolanderi Lesquereux Mem. Calif. Acad. Sci. 1: 22. 1868
Synonyms: Pohlia bolanderi var. seriata A. J. Shaw
Treatment appears in FNA Volume 28. Treatment on page 198. Mentioned on page 195, 200.

Plants small to medium-sized, green or sometimes pale whitish, somewhat shiny. Stems 0.3–1.5 cm. Leaves erect to ± spreading, lanceolate to narrowly ovatelanceolate, 0.8–1.6 mm; base not or scarcely decurrent; margins serrulate to serrate in distal 1/3; costa subpercurrent or percurrent; distal medial laminal cells linear-rhomboidal, 55–100 µm, walls thin. Specialized asexual reproduction absent. Sexual condition dioicous; perigonial leaves ovate; perichaetial leaves slightly differentiated, ovatelanceolate. Seta stramineous to orangebrown. Capsule inclined 35–90°, stramineous to orangebrown, narrowly cylindric, neck 1/2–1 time urn length; exothecial cells elongate-rectangular, walls straight; stomata superficial; annulus present; operculum conic; exostome teeth yellow to yellowbrown, acute-triangular; endostome hyaline, basal membrane 1/4–1/2 exostome length, segments tapered apically, narrowly keeled, narrowly to not perforate, cilia absent to rudimentary. Spores 16–26 µm, distinctly roughened.


Phenology: Capsules mature summer (Jun–Aug).
Habitat: Dry alpine soil, soil-filled rock crevices
Elevation: low to high elevations

Distribution

V28 313-distribution-map.gif

B.C., Alaska, Calif., Colo., Nev., N.Mex., Oreg., Utah, Wash., Wyo., Europe

Discussion

Pohlia bolanderi has glossy to whitish leaves. Glossy forms might be confused with P. longicolla, but P. bolanderi can be distinguished by its smaller size and dioicous inflorescences. The leaves of P. bolanderi are smaller and relatively broader than those of P. longicolla. Variety seriata is characterized by whitish, ranked leaves; it is not recognized here because of intermediate plants from western North America, although in their best development these plants are very distinctive. Plants of this variant might be confused with Conostomum tetragonum (Bartramiaceae).

Selected References

None.

Lower Taxa

None.

"tapered" is not a number."narrow" is not a number.

... more about "Pohlia bolanderi"
erect;widespreading +
A. Jonathan Shaw +
(Lesquereux) Brotherus in H. G. A. Engler and K. Prantl +
reduced +
brown;reddish +
decurrent +
Bryum bolanderi +
cucullate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
stramineous;orangebrown +
long-exserted +
cylindric +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rudimentary +
not +  and nodulose +
subpercurrent +
linear-rhomboidal +, rhombic +  and elongate-hexagonal +
B.C. +, Alaska +, Calif. +, Colo. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +, Wyo. +  and Europe +
low to high elevations +
dark reddish-brown +, pale-yellow +  and brown +
yellow;yellowbrown +
acute-triangular +
elongate-rectangular +
Dry alpine soil, soil-filled rock crevices +
erect;more or less spreading +
lanceolate +  and narrowly ovatelanceolate +
vegetative +
0.08 cm0.8 mm <br />8.0e-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 +
1/2 +  and 1 +
differentiated +
ovatelanceolate +
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 +
stramineous +  and orangebrown +
straight +
Illustrated +
darker +, hyaline +, tan +  and pale-yellow +
not complanate-foliate +
short to long +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
superficial +
Pohlia bolanderi var. seriata +
Pohlia bolanderi +
species +
not +  and trabeculate +
papillose +  and pitted +
triangular;lanceolate +
reduced +
multicellular +
spheric;ovoid +
extensive +
collenchymatous +
straight +
specialized +
dioicous +, sexual +  and asexual +
sinuate +
pale whitish +, sometimes +  and green +
small;medium-sized +