Scouleria marginata

E. Britton

Bull. Torrey Bot. Club 22: 42. 227. 1895,.

Treatment appears in FNA Volume 27. Treatment on page 313.

Stem-leaves 3–3.5 (–4) × 1–1.3 mm, margins multistratose throughout except 2-stratose at apex (pseudocosta in cross-section with chlorophyllose outer epidermal-cells and small, thick-walled inner cells), toothed or entire; basal; laminal cells rectangular to quadrate, 15–40 × 7–10 µm, juxtacostal cells shorter; medial and distal laminal cells 10–15 (–18) µm; marginal laminal cells with stereid cells 150–200 µm. Peristome absent.


Habitat: Exposed to submerged in streams or rivers, rocks, particularly granitic
Elevation: moderate to high elevations (1000-1800 m)

Distribution

V27 428-distribution-map.gif

B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Scouleria marginata"
cucullate +
Steven P. Churchill +
E. Britton +
long-rectangular +
decurrent +
cucullate +
spherical;obovoid +
thin-walled +  and thick-walled +
large +  and small +
ovoid +  and cylindrical +
expanding +
B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
moderate to high elevations (1000-1800 m) +
Exposed to submerged in streams or rivers, rocks, particularly granitic +
ovatelanceolate +
not +  and projecting +
erect;patent +
oblong-lanceolate +
multistratose +
entire;serrate;entire;weakly strongly dentate +
entire +  and toothed +
apiculate +, mammillate +  and low-conic +
terminal;subterminal +
rounded +, acute +  and ovate +
concave +  and ovate +
Bull. Torrey Bot. Club +
papillose +
1;2;1;1;3 +
1/3 +  and 1/2 +
granulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
elongate +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dioicous +, sexual +  and asexual +
long-rectangular +
Grimmia sect. Scouleria +  and Grimmia subg. Scouleria +
Scouleria marginata +
Scouleria +
species +
loose;compact +
compressed +
brown +  and black +