Abietinella abietina

(Hedwig) M. Fleischer

Musc. Buitenzorg 4: 1497. 1923. 1923

Illustrated
Basionyms: Hypnum abietinum Hedwig Sp. Musc. Frond., 353 [added post-publ.]. 1801
Synonyms: Thuidium abietinum (Hedwig) Schimper
Treatment appears in FNA Volume 28. Treatment on page 375.

Plants dark green, yellowish-brown, or dark-brown, sometimes blackish tinged. Stems to 12 cm; branches short, unequal, tapered; paraphyllia many. Stem-leaves erect when dry, erect-spreading when moist, orange at insertion, plicate, 1.2–1.8 mm. Branch leaves erect when dry, erect-spreading when moist, 0.6–0.7 mm; costa strong. Perichaetial leaves to 4 mm. Seta 2–2.5 cm. Capsule yellowbrown, 2–3 mm. Spores 9–11 µm, finely papillose.


Phenology: Capsules mature late summer.
Habitat: Dry, exposed calcareous rock and soil, sand of partially stabilized dunes, talus at base of cliffs, humus in open, coniferous forests
Elevation: low to moderate elevations

Distribution

Greenland, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Alaska, Ariz., Colo., Conn., Iowa, Maine, Mich., Minn., Mo., Mont., N.H., N.J., N.Mex., N.Y., N.Dak., Pa., S.Dak., Vt., Va., Wis., Wyo., Europe, Asia

Discussion

Abietinella abietina is the easiest of the Thuidium-like plants to recognize in the flora area, in part because of its distinctive habitat requirements. The stems are 1-pinnate, erect-ascending, and often occur in extensive, lax mats. Paraphyllia are abundant on stems and branches, but are usually not nearly as strongly branched as in Thuidium in the narrow sense. Abietinella abietina is widespread throughout the northern part of the flora. The capsules of this species are very rare. Unlike Thuidium, Abietinella is papillose on both leaf surfaces rather than just the back.

Selected References

None.

Lower Taxa

None.

... more about "Abietinella abietina"
3-seriate +  and 2-seriate +
differentiated +
William R. Buck +
(Hedwig) M. Fleischer +
Hypnum abietinum +
erect-spreading +  and erect +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
unequal +
roughened +  and smooth +
cucullate +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
papillose +
differentiated +
2 (?) +  and 1 (?) +
nodulose +
subpercurrent +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Colo. +, Conn. +, Iowa +, Maine +, Mich. +, Minn. +, Mo. +, Mont. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.Dak. +, Pa. +, S.Dak. +, Vt. +, Va. +, Wis. +, Wyo. +, Europe +  and Asia +
low to moderate elevations +
shouldered +  and bordered +
Dry, exposed calcareous rock and soil, sand of partially stabilized dunes, talus at base of cliffs, humus in open, coniferous forests +
dioicous +  and sexual +
crenulate-papillose +
short-rostrate +
branched +, simple +  and foliose +
oblong-lanceolate +
Capsules mature late summer. +
Musc. Buitenzorg +
smooth;roughened +
elongate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Illustrated +
spheric +
erect-spreading +  and erect +
not stipitate +
erect-ascending +
0 cm0 mm <br />0 m <br /> (12 cm120 mm <br />0.12 m <br />) +
differentiated +
Thuidium abietinum +
Abietinella abietina +
Abietinella +
species +
specialized +
dioicous +, autoicous +, sexual +  and asexual +
blackish tinged;dark-brown;yellowish-brown;dark-brown;yellowish-brown;dark green +