Heterocladium procurrens

(Mitten) A. Jaeger

Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1876–1877: 246. 1878.

EndemicIllustrated
Basionym: Pterogonium procurrensu Mitten J. Linn. Soc., Bot. 8: 37. 1864
Treatment appears in FNA Volume 28. Treatment on page 370.

Stems with epidermal-cells smooth. Leaves squarrose-spreading when dry or moist; stem-leaves 1–2 mm; margins serrulate; apex acuminate; costa double to mid leaf; laminal cells smooth.


Habitat: Rock, soil, humus, rotting wood, base of trees
Elevation: low to moderate elevations

Distribution

V28 579-distribution-map.gif

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

Discussion

Plants of Heterocladium procurrens appear much larger than those of the other two species in the flora due to their somewhat more regular branching and strongly spreading leaves, even when dry; the strongly spreading leaves and smooth laminal cells are distinguishing traits. Specimens of H. procurrens also frequently have a yellow-green or red-green coloration and shiny appearance while the other two species are generally dark green and dull in appearance.

Selected References

None.

Lower Taxa

None.
... more about "Heterocladium procurrens"
acuminate +
Robert E. Magill +
(Mitten) A. Jaeger +
Pterogonium procurrensu +
short-cylindric +
not differentiated +
double to mid leaf +  and 2-fid +
B.C. +, Alaska +, Idaho +, Mont. +, Oreg. +  and Wash. +
low to moderate elevations +
Rock, soil, humus, rotting wood, base of trees +
smooth +  and papillose +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
squarrose-spreading +
concave +
thread-like +
papillose +  and smooth +
dioicous +  and sexual +
oblong-rhomboidal +, rhomboidal +  and quadrate +
cucullate +, conic +  and short-rostrate +
Ber. Thätigk. St. Gallischen Naturwiss. Ges. +
Endemic +  and Illustrated +
ovate-acuminate +
often somewhat larger +
irregularly branched;pinnate +
erect;more or less creeping +
Heterocladium procurrens +
Heterocladium +
species +
yellowish +, dark green +  and olive green +