Orthotrichum pallens var. johnseniae

Vitt

Bryologist 74: 162, figs. 13 – 16. 1971.

Endemic
Treatment appears in FNA Volume 28. Treatment on page 62. Mentioned on page 61.

Stem-leaves broadly lanceolate to lanceolate; margins entire; apex narrowly obtuse or bluntly acute. Seta 0.5–1 mm. Capsule oblong-cylindric, 1.5–2 mm; exostome teeth recurved-reflexed, finely papillose; endostome segments 8, of 1 row of cells, shorter than exostome, smooth. Calyptra sparsely hairy. Spores 13–20 µm.


Habitat: Basaltic boulders in spruce-popular forests
Elevation: high elevations (3000 m)

Discussion

Variety johnseniae is distinguished by its hairy calyptrae. The capsules have eight endostome segments and are shorter and moderately constricted below the mouth. The stomata are barely covered with subsidiary cells which usually have their interior walls thickened, and the exostome teeth tend to be somewhat recurved instead of reflexed.

Selected References

None.

Lower Taxa

None.

"contracted" is not a number.

awned +  and apiculate +
acute;obtuse +
Dale H. Vitt +
not decurrent +
erect +  and ascending +
conic-oblong +
8-ribbed or 16-ribbed +  and smooth +
oblong-cylindric +
constricted +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not projecting +
papillose +  and smooth +
differentiated +
high elevations (3000 m) +
linear-lanceolate +
recurved-reflexed +
rectangular;elliptic +
connate +
occasional +
Basaltic boulders in spruce-popular forests +
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 +
sinistrorse +, dextrorse +  and erect +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
papillose +  and smooth +
broadly lanceolate;lanceolate +
superficial +
0 +  and 1/2 +
Orthotrichum immersum +  and O. pallens var. immersum +
Orthotrichum pallens var. johnseniae +
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 +