Brachytheciastrum velutinum var. velutinum

Synonyms: Brachythecium petrophilum R. S. Williams
Treatment appears in FNA Volume 28. Treatment on page 412.

Plants green, sometimes yellowish or brownish. Stems creeping, regularly pinnate, branches subcomplanate-foliate. Stem-leaves erect-spreading, densely to loosely arranged, straight to slightly curved, ovatelanceolate to lanceolate, 1–1.6 × (0.1–) 0.2–0.5 (–0.6) mm; margins serrulate to base, serrate to serrulate distally; laminal cells 45–90 (–125) × 5–7 µm. Branch leaves ± falcate or occasionally straight. Seta rough throughout.


Habitat: Mineral soil, humus, litter, decaying wood, trunk bases
Elevation: low to high elevations (0-2100 m)

Distribution

V28 640-distribution-map.gif

Alta., B.C., Man., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Yukon, Calif., Colo., Conn., Del., Idaho, Maine, Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.C., Oreg., Pa., R.I., S.Dak., Utah, Vt., Va., Wash., W.Va., Wis., Eurasia, n Africa, Atlantic Islands

Discussion

Variety velutinum is distinguished from most species in Brachytheciaceae by a small stature, narrow, more or less falcate leaves that usually spread from their bases, and somewhat complanate foliage.

Selected References

None.

Lower Taxa

None.

"long" is not a number."thick" is not a number."broad" is not a number.

Michael S. Ignatov +
(Hedwig) Ignatov & Huttunen +
undifferentiated +
short-rectangular +
8um +  and 10um +
short-decurrent +
rounded +  and narrowed +
rounded-cucullate +  and decurrent +
short to long +
Hypnum velutinum +
subcomplanate-foliate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
usually straight;curved +
cucullate +
dark redbrown +  and brown +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
specialized +
synoicous +, dioicous +, autoicous +, sexual +  and asexual +
subquadrate +  and short-rectangular +
differentiated +
10um +  and 15um +
3 (?) +  and 2 (?) +
discernible +
thick +  and thin +
autoicous +  and sexual +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Yukon +, Calif. +, Colo. +, Conn. +, Del. +, Idaho +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, N.C. +, Oreg. +, Pa. +, R.I. +, S.Dak. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Eurasia +, n Africa +  and Atlantic Islands +
yellow-green +  and orange tinge +
low to high elevations (0-2100 m) +
not adherent +
Mineral soil, humus, litter, decaying wood, trunk bases +
5um (?) +  and 7um (?) +
pointed +
serrate +  and serrulate +
subentire +, serrulate +  and plane +
short-conic +
perfect +  and xerocastique +
hygrocastique +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
opaque +  and clear +
delimited +
roughened +  and smooth +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Illustrated +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
straight +  and slightly curved +
erect-spreading +
ovatelanceolate +  and lanceolate +
0.2mm;0.5mm +
subcomplanate-foliate +
erect +, ascending +  and creeping +
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Brachythecium petrophilum +
Brachytheciastrum velutinum var. velutinum +
Brachytheciastrum velutinum +
variety +
incrassate +
thick;thick +
brownish +, yellowish +  and green +