Orthotrichum pallens var. pallens

Treatment appears in FNA Volume 28. Treatment on page 61.
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Stem-leaves oblong-lanceolate to lanceolate; margins entire; apex narrowly obtuse to broadly acute. Seta 0.5–1.5 mm. Capsule oblong-cylindric, 1.3–2.5 mm; exostome teeth reflexed, densely papillose; endostome segments 16, of 2 rows of cells, as long as exostome, papillose. Calyptra naked. Spores 10–17 µm.


Habitat: Trunks and branches of trees, dry, calcareous or granitic rock along streams
Elevation: moderate to high elevations (300-3000 m)

Distribution

V28 83-distribution-map.gif

Alta., B.C., Man., Nfld. and Labr. (Nfld.), Nunavut, Ont., Que., Yukon, Ariz., Calif., Colo., Mich., Minn., Mont., Nev., S.Dak., Utah, Mexico (Nuevo León), Europe

Discussion

Variety pallens has entire leaf margins, 16 endostome segments, and a naked calyptra.

Selected References

None.

Lower Taxa

None.

"contracted" is not a number.

awned +  and apiculate +
narrowly obtuse;broadly acute +
Dale H. Vitt +
Bruch ex Bridel +
not decurrent +
erect +  and ascending +
conic-oblong +
8-ribbed or 16-ribbed +  and smooth +
oblong-cylindric +
constricted +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not projecting +
papillose +  and smooth +
differentiated +
Alta. +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, Nunavut +, Ont. +, Que. +, Yukon +, Ariz. +, Calif. +, Colo. +, Mich. +, Minn. +, Mont. +, Nev. +, S.Dak. +, Utah +, Mexico (Nuevo León) +  and Europe +
moderate to high elevations (300-3000 m) +
linear-lanceolate +
rectangular;elliptic +
connate +
occasional +
Trunks and branches of trees, dry, calcareous or granitic rock along streams +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
oblong-lanceolate +  and broadly lanceolate +
straight +
spreading +  and widespreading +
not rugose +
linear-lanceolate +, lanceolate +, oblong +  and ovate +
crenulate +  and entire +
dioicous +, cladautoicous +  and sexual +
rostrate;convex;conic +
mammillose +  and smooth +
cladautoicous +  and sexual +
sometimes larger +
lateral +  and terminal +
Bryol. Univ. +
sinistrorse +, dextrorse +  and erect +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
papillose +  and smooth +
oblong-lanceolate;lanceolate +
superficial +
0 +  and 1/2 +
Orthotrichum immersum +  and O. pallens var. immersum +
Orthotrichum pallens var. pallens +
Orthotrichum pallens +
variety +
specialized +
cladautoicous +, pseudautoicous +, dioicous +  and sexual +
not nodose +
incrassate +
olive brown;reddish-brown;olive brown;reddish-brown;dark green +
large +  and small +