Rhytidiopsis robusta

(Hooker) Brotherus

in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 232/233[I,3]: 1057. 1908.

EndemicIllustrated
Basionym: Hypnum robustum Hooker Musci Exot. 2: plate 108. 1819 (as Hypnunum on plate)
Treatment appears in FNA Volume 28. Treatment on page 336.

Plants to 12 cm. Stems hooked at apices. Stem leaves 1.2–2.2 mm wide; alar cells shorter, wider than basal cells, 18–38 × 12–25 µm; medial laminal cells 40–90 × 5–9 µm. Branch leaves 2.2–4 × 0.9–1.3 mm. Seta 1.7–3 cm. Capsule arcuate when dry, ellipsoid when moist, 2–3.4 mm.


Habitat: Soil, litter, and rock in montane coniferous forests of Pacific Northwest, occasionally extending into alpine tundra
Elevation: moderate to high elevations (300-2500 m)

Distribution

V28 523-distribution-map.gif

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

Discussion

Plants of Rhytidiopsis robusta in subalpine forest and alpine tundra are generally smaller, with leaves 2.5–3.5 mm and leafy stems 3–4 mm wide.

Selected References

None.

Lower Taxa

None.
... more about "Rhytidiopsis robusta"
Joseph R. Rohrer +
(Hooker) Brotherus +
Hypnum robustum +
Alta. +, B.C. +, Alaska +, Colo. +, Idaho +, Mont. +, Oreg. +  and Wash. +
moderate to high elevations (300-2500 m) +
Soil, litter, and rock in montane coniferous forests of Pacific Northwest, occasionally extending into alpine tundra +
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. +
Endemic +  and Illustrated +
Rhytidiopsis robusta +
Rhytidiopsis +
species +