Dicranella pacifica

W. B. Schofield

Bryologist 73: 703. 1970,.

Treatment appears in FNA Volume 27. Treatment on page 390. Mentioned on page 387.

Plants 2.5–4 cm, yellowish, brownish, or dark green. Leaves erect-spreading and flexuose-crisped when dry, 2.5–4 mm, gradually narrowed from an ovate base to a long, slender, subtubulose subula; margins distinctly recurved below, erect or incurved above, serrulate at or near the slender apex; costa percurrent, filling most of the subula; distal cells subquadrate, 1–2: 1 (ca. 17 × 10 µm), 2-stratose at the margins. Sexual condition dioicous. Seta red, 5–8 mm. Capsule inclined to horizontal, 0.8 mm, obovoid-oblong, curved, not strumose, smooth; annulus none; operculum-conic; peristome teeth ca. 425 µm, divided 1/2 length distally. Spores 15–17 µm, smooth.


Phenology: Capsules mature fall and winter.
Habitat: Wet, silty soil of roadside ditch banks and soil of cliff crevices
Elevation: low to medium elevations

Discussion

Distinctive features of Dicranella pacifica include slender, flexuose-crisped, subtubulose leaves with margins recurved below but 2-stratose and incurved above, high-conic opercula, and annulus absent.

Selected References

None.

Lower Taxa

None.

... more about "Dicranella pacifica"
persistent +  and deciduous +
operculum-conic +
Howard A. Crum† +
W. B. Schofield +
short to long +
differentiated +
Aongstroemia sect. Dicranella +
microphyllous +
pseudomonoicous +, dioicous +, autoicous +  and sexual +
reproduction +  and asexual +
cucullate +
inclined +  and horizontal +
not strumose +  and obovoid-oblong +
0.8 cm8 mm <br />0.008 m <br /> (?) +
specialized +
persistent +  and deciduous +
papillose +  and mammillose +
not differentiated +
subpercurrent +
papillose +  and smooth +
dioicous +  and sexual +
subquadrate +
B.C. +, Calif. +  and Wash. +
low to medium elevations +
Wet, silty soil of roadside ditch banks and soil of cliff crevices +
2-stratose +  and 1-stratose +
falcate-secund +
straight +
narrowed +  and flexuose-crisped +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
incurved +, erect +  and recurved +
long-rostrate +  and conic +
nonpitted +  and pitted +
toothed +  and forked +
short-acuminate +, concave +  and ovate +
pitted-striolate +
16 +  and single +
papillose +  and striolate +
Capsules mature fall and winter. +
undifferentiated +
1 (?) +  and 2 (?) +
flexuose +
elongate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
red +  and pitted-striolate +
papillose +
spheric +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
superficial +
furrowed +  and plicate +
Anisothecium +, Dicranella subg. Anisothecium +, Dicranella subg. Microdus +  and Microdus +
Dicranella pacifica +
Dicranella +
species +
not deciduous +
lanceolate +
dioicous +, sexual +  and asexual +
dark green +, brownish +  and yellowish +