Orthotrichum bolanderi

Sullivant

Icon. Musc., suppl., 64, plate 46. 1874.

Treatment appears in FNA Volume 28. Treatment on page 52. Mentioned on page 46.

Plants 0.5–4 cm, dark green to black. Stem-leaves stiff, erect-appressed, rarely incurved when dry, lanceolate, 2–3.5 mm; margins plane, entire; apex narrowly obtuse to acute; basal laminal cells elongate, walls thick, ± nodose; distal cells 7–11 µm, 2-stratose, papillae 2–4 per cell, conic, sometimes large. Specialized asexual reproduction absent. Sexual condition gonioautoicous. Seta 1 mm. Capsule emergent, ovate-oblong when mature, ovate-cylindric when old, 1.4–2 mm, slightly 8-ribbed in distal 1/3 of capsule; stomata superficial; peristome double; prostome present, rudimentary; exostome teeth 8, erect, sometimes reflexed when old and dry, papillose to coarsely papillose-striate; endostome segments 8, occasionally rudimentary, of 2 rows of cells, papillose. Calyptra oblong-conic, smooth, hairy, hairs papillose. Spores 17–23 µm.


Habitat: Rock, especially sandstone
Elevation: low to high elevation (100-2000 m)

Distribution

V28 62-distribution-map.gif

Calif., Wash., Mexico, Central America (Guatemala)

Discussion

Orthotrichum bolanderi is the only species with superficial stomata that has 2-stratose distal laminal cells. The plants have leaves with subsheathing bases, ovoid-cylindric capsules with long wrinkled necks, and reflexed-recurved exostome teeth. When dry, the leaves are stiffly erect-appressed; they lie flat on a microscope slide when wet.

Selected References

None.

Lower Taxa

None.
... more about "Orthotrichum bolanderi"
awned +  and apiculate +
narrowly obtuse;acute +
Dale H. Vitt +
Sullivant +
not decurrent +
erect +  and ascending +
oblong-conic +
8-ribbed or 16-ribbed +  and smooth +
ovate-cylindric;ovate-oblong +
constricted +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
differentiated +
Calif. +, Wash. +, Mexico +  and Central America (Guatemala) +
low to high elevation (100-2000 m) +
linear-lanceolate +
reflexed +  and erect +
papillose +  and coarsely papillose-striate +
rectangular;elliptic +
connate +
occasional +
Rock, especially sandstone +
papillose +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
lanceolate +
straight +
spreading +  and widespreading +
not rugose +
linear-lanceolate +, lanceolate +, oblong +  and ovate +
dioicous +, cladautoicous +  and sexual +
rostrate;convex;conic +
mammillose +  and smooth +
sexual +  and asexual +
sometimes larger +
lateral +  and terminal +
Icon. Musc., suppl., +
sinistrorse +, dextrorse +  and erect +
1 cm10 mm <br />0.01 m <br /> (?) +
papillose +  and smooth +
superficial +
Orthotrichum bolanderi +
Orthotrichum +
species +
specialized +
cladautoicous +, pseudautoicous +, dioicous +  and sexual +
incrassate +
large +  and small +