Rhytidiadelphus loreus

(Hedwig) Warnstorf

Krypt.-Fl. Brandenburg 2: 922. 1906.

Illustrated
Basionym: Hypnum loreum Hedwig Sp. Musc. Frond., 294. 1801
Treatment appears in FNA Volume 28. Treatment on page 332. Mentioned on page 331.

Plants to 15 cm, soft. Stems 3–5 mm wide across leafy stem, remotely and irregularly branched to subpinnate, branches to 4 cm. Stem-leaves erect-spreading, often falcate-secund or recurved distally, not crowded, ovatelanceolate, plicate, not rugose, 3.2–4.2 × 0.9–1.4 mm; base loosely sheathing, not rounded to insertion; apex abruptly narrowed, acumen long, slender, channeled; costa less than 1/4 leaf length; alar cells not differentiated; medial laminal cells 40–80 × 5–7 µm, smooth. Branch leaves narrowly lanceolate, 1.7–3.6 × 0.4–1 mm. Capsule ovoid, 1.3–2.5 mm.


Habitat: Especially common on logs, but also covering soil, humus, rock, and base of trees, floor of moist coniferous forests, abundant near coast, rare elsewhere
Elevation: low to moderate elevations (0-1000 m)

Distribution

V28 516-distribution-map.gif

St. Pierre and Miquelon, B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Que., Alaska, Calif., Idaho, Mass., Mont., Oreg., Wash., Europe, Atlantic Islands

Discussion

A specimen of Rhytidiadelphus loreus from Owen Sound, Ontario (Moxley, July 1925, DUKE) is correctly determined, but the locality is very doubtful. In Quebec, R. loreus is known only from the Magdalen Islands in the Gulf of St. Lawrence. The branches of R. loreus decrease regularly in length distally on the stem.

Selected References

None.

Lower Taxa

None.

"nearly" is not a number. "single" is not a number."broad" is not a number.

... more about "Rhytidiadelphus loreus"
channeled +
slender +
narrowed +
Joseph R. Rohrer +
(Hedwig) Warnstorf +
not rounded +
decurrent +
Hypnum loreum +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0.4mm +  and 1mm +
attenuate +
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
cucullate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
elongate +
not differentiated +
dioicous +  and sexual +
St. Pierre and Miquelon +, B.C. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Que. +, Alaska +, Calif. +, Idaho +, Mass. +, Mont. +, Oreg. +, Wash. +, Europe +  and Atlantic Islands +
low to moderate elevations (0-1000 m) +
Especially common on logs, but also covering soil, humus, rock, and base of trees, floor of moist coniferous forests, abundant near coast, rare elsewhere +
ascending-arching +
not +, crowded +  and falcate-secund +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.49 cm4.9 mm <br />0.0049 m <br />) +
squarrose-recurved;erect-spreading;squarrose +
ovatelanceolate +, ovate-triangular +  and ovate +
serrulate;serrulate;nearly entire +
Krypt.-Fl. Brandenburg +
elongate +
extensive +
Illustrated +
spheric +
not crowded +  and falcate-secund +
3.2mm;4.2mm +
recurved;erect-spreading +
ovatelanceolate +
0.9mm;1.4mm +
leafy;irregularly branched;subpinnate +
creeping;ascending or erect +
3mm;5mm +
Hylocomiadelphus +
Rhytidiadelphus loreus +
Rhytidiadelphus +
species +