Hylocomiastrum pyrenaicum

(Spruce) M. Fleischer ex Brotherus in H. G. A. Engler et al.

in H. G. A. Engler et al., Nat. Pflanzenfam. ed. 2, 11: 487. 1925.

Illustrated
Basionym: Hypnum pyrenaicum Spruce Musci Pyren., no. 4. 1847
Synonyms: Hylocomium pyrenaicum (Spruce) Lindberg
Treatment appears in FNA Volume 28. Treatment on page 327.

Plants to 12 cm, soft. Stems 1–3 mm wide across leafy stem, irregularly branched to loosely 1-pinnate, not frondose or bushy, branches turgid, innovations inconspicuous. Stem-leaves erect to erect-spreading, loosely imbricate, becoming more tightly imbricate toward stem apices, ovate to elliptic-ovate, somewhat concave, 1.5–2.5 × 1–1.4 mm; margins serrulate to nearly entire proximally, serrate distally; apex abruptly narrowed; costa single; medial laminal cells 30–60 × 5–7 µm. Branch leaves imbricate, ovatelanceolate to lanceolate, 1.3–2 × 0.4–0.9 mm; costa single. Seta 1–3 cm. Capsule ovoid, 1.3–1.8 mm.


Habitat: Soil, humus, old logs, rock in moist forests, rarely fens, and tundra, often along streams or beside waterfalls
Elevation: low to high elevations (0-3000 m)

Distribution

V28 508-distribution-map.gif

Greenland, Alta., B.C., N.B., Nfld. and Labr., N.W.T., N.S., Ont., Que., Yukon, Alaska, Colo., Maine, Mich., Minn., N.H., N.Y., Vt., Wash., Wis., Eurasia

Discussion

Hylocomiastrum pyrenaicum may be more common in calcareous regions.

Selected References

None.

Lower Taxa

None.

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

... more about "Hylocomiastrum pyrenaicum"
narrowed +
Joseph R. Rohrer +
(Spruce) M. Fleischer ex Brotherus in H. G. A. Engler et al. +
not cordate-clasping +
decurrent +
Hypnum pyrenaicum +
2-seriate +  and 1-seriate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
ovatelanceolate;lanceolate +
0.4mm +  and 0.9mm +
cucullate +
inclined;horizontal +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
elongate +
not differentiated +
single;single +
dioicous +  and sexual +
Greenland +, Alta. +, B.C. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, Que. +, Yukon +, Alaska +, Colo. +, Maine +, Mich. +, Minn. +, N.H. +, N.Y. +, Vt. +, Wash. +, Wis. +  and Eurasia +
low to high elevations (0-3000 m) +
Soil, humus, old logs, rock in moist forests, rarely fens, and tundra, often along streams or beside waterfalls +
ascending-arching +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
erect;spreading +
ovate +  and ovate-deltoid +
serrate;serrulate;nearly entire +
spinose-serrate to serrate +
in H. G. A. Engler et al., Nat. Pflanzenfam. ed. +
elongate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
extensive +
Illustrated +
spheric +
1.5mm;2.5mm +
erect;erect-spreading +
concave;ovate;elliptic-ovate +
leafy;not frondose;irregularly branched;loosely 1-pinnate +
2-pinnate;irregularly pinnate;regularly 1-pinnate +
creeping;ascending or erect +
1mm;3mm +
Hylocomium pyrenaicum +
Hylocomiastrum pyrenaicum +
Hylocomiastrum +
species +