Sphagnum fimbriatum subsp. fimbriatum

Synonyms: Sphagnum bolanderi Warnstorf
Treatment appears in FNA Volume 27. Treatment on page 92.

Plants typically small and slender; capitulum small and with a conspicuous terminal bud; green to yellowish-brown. Stem-leaves broad-spatulate, 0.8–1.5 (–2) mm, strongly lacerate across the broad apex and partway down the sides, border scarcely to moderately broadened at leaf base (0.25 width of base or less). Sexual condition monoicous. Spores 20–27 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius.


Phenology: Capsules mature late spring and early summer.
Habitat: Minerotrophic, common at the mineral soil margins of bogs and poor fens, medium open and forested fens
Elevation: low to high elevations

Distribution

V27 90-distribution-map.gif

Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Sask., Alaska, Calif., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mo., Mont., N.H., N.J., N.Y., Ohio, Oreg., Pa., R.I., Tenn., Vt., Wash., W.Va., Wis., South America, Eurasia, Pacific Islands (New Zealand)

Discussion

Sporophytes are very common in subsp. fimbriatum. It is associated with Sphagnum centrale, S. fallax, S. henryense, S. affine, S. palustre, S. russowii, S. teres, S. warnstorfii, and Drepanocladus exannulatus. It is normally very easily recognizable because of its very small size, pale green color, and distinct terminal bud. In Alaska it overlaps with subsp. concinnum, which has a similarly very broad and lacerate stem leaf apex but the lacerate margin does not extend down the sides of the leaf. Subspecies concinnum is also a more compact-growing taxon with a distinctly browner color.

Selected References

None.

Lower Taxa

None.

"usually longer and thicker" is not a number."broad" is not a number.

cucullate;involute +
Cyrus B. McQueen† +  and Richard E. Andrus +
Wilson & Hooker in J. D. Hooker +
monoicous +  and sexual +
fimbriate +
differentiated +
broadened +
not 5-ranked +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
ratio +, length +  and width +
concave +, ovate +  and ovatelanceolate +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
pendent +  and spreading +
1 +  and 2 +
more slender +
differentiated +
1-2-septate +  and efibrillose +
alternating +
strengthened +
nonornamented +
rhomboid +
larger +
fibrillose +
spherical +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
monoicous +, dioicous +  and sexual +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Sask. +, Alaska +, Calif. +, Colo. +, Conn. +, Del. +, Idaho +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Mont. +, N.H. +, N.J. +, N.Y. +, Ohio +, Oreg. +, Pa. +, R.I. +, Tenn. +, Vt. +, Wash. +, W.Va. +, Wis. +, South America +, Eurasia +  and Pacific Islands (New Zealand) +
low to high elevations +
monoicous +, dioicous +  and sexual +
conspicuous +
isophyllous +, hemiisophyllous +  and anisophyllous +
Minerotrophic, common at the mineral soil margins of bogs and poor fens, medium open and forested fens +
0.15 cm1.5 mm <br />0.0015 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
lacerate;broad-spatulate +
conspicuous +
Capsules mature late spring and early summer. +
large +  and small +
in J. D. Hooker, Fl. Antarct., +
tetrahedral +
septate +, porose +  and efibrillose +
triangular;lingulate-spatulate +
pale green;straw-colored +
superficial +
differentiated +
monoicous +  and sexual +
concave +  and convex +
Sphagnum bolanderi +
Sphagnum fimbriatum subsp. fimbriatum +
Sphagnum fimbriatum +
subspecies +
swollen +
red +, pink +, brown +  and green +
slender +  and small +