Sphagnum warnstorfii

Russow

Sitzungs.-Ber. Naturf.-Ges. Univ. Dorpat 8: 315. 1888,.

Synonyms: Sphagnum warnstorfianum Du Rietz
Treatment appears in FNA Volume 27. Treatment on page 101. Mentioned on page 80, 87, 90, 92, 94, 97, 98, 100.

Plants small or less frequently moderate-sized, slender, capitulum flattopped and stellate; green or dark purplish red and green, rarely green throughout, often with a distinctive bluish cast when dry. Stems red to green; superficial cortical cells aporose. Stem-leaves triangular-lingulate to lingulate, 1.1–1.4 mm, apex broad-rounded to narrowly truncate, border very broad at base (more than 0.3 width); hyaline cells efibrillose, rhombic, mostly 1-septate but can nonseptate. Branches long and tapering, usually strongly 5-ranked. Branch fascicles with 2 spreading and 1–2 pendent branches. Branch leaves ovatelanceolate, 0.9–1.4 mm, concave, straight, apex involute; hyaline cells on convex surface with very small ringed pores (less than 0.25 cell width) along commissures near apex, changing abruptly to large elliptical pores (0.4 cell width or more) basally, concave surface with large round pores in proximal margins and leaf base. Sexual condition dioicous. Spores 17–26 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius.


Phenology: Capsules mature late summer to early autumn.
Habitat: Minerotropic, hygrophytic, frequent in medium to rich fens
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, Colo., Conn., Idaho, Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.Dak., Utah, Vt., Wash., Wis., Wyo., Eurasia

Discussion

Sporophytes are uncommon in Sphagnum warnstorfii. This is one of the most minerotrophic species of the flora, is hygrophytic, and has a very broad niche. The most commonly associated vascular plants are Thuja occidentalis, Abies balsamea, and Picea rubens. Bryophytes typically associated with it are S. centrale, S. squarrosum, S. teres, Calliergonella cuspidata, and Campylium stellatum. This species is perhaps most similar to S. bartlettianum, with which it has small range overlap. Sphagnum warnstorfii has a shorter and less sharply pointed stem leaf and the red color with a characteristic bluish caste compared to the crimson red of S. bartlettianum. See also discussion under 81. S. russowii and 86. S. talbotianum.

Selected References

None.

Lower Taxa

None.

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

... more about "Sphagnum warnstorfii"
broad-rounded;narrowly truncate +
Cyrus B. McQueen† +  and Richard E. Andrus +
Russow +
fimbriate +
differentiated +
fascicles +  and 5-ranked +
ratio +, length +  and width +
concave +  and ovatelanceolate +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
pendent +  and spreading +
1 +  and 2 +
tapering +
more slender +
differentiated +
1-septate +  and efibrillose +
alternating +
strengthened +
nonornamented +
rhombic +
larger +
fibrillose +
spherical +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
distinctive +
monoicous +, dioicous +  and sexual +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Colo. +, Conn. +, Idaho +, Ind. +, Iowa +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.Dak. +, Utah +, Vt. +, Wash. +, Wis. +, Wyo. +  and Eurasia +
low to moderate elevations +
monoicous +, dioicous +  and sexual +
conspicuous +
isophyllous +, hemiisophyllous +  and anisophyllous +
Minerotropic, hygrophytic, frequent in medium to rich fens +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
triangular-lingulate;lingulate +
conspicuous +
Capsules mature late summer to early autumn. +
large +  and small +
Sitzungs.-Ber. Naturf.-Ges. Univ. Dorpat +
tetrahedral +
septate +, porose +  and efibrillose +
triangular;lingulate-spatulate +
differentiated +
dioicous +  and sexual +
concave +  and convex +
Sphagnum warnstorfianum +
Sphagnum warnstorfii +
Sphagnum sect. Acutifolia +
species +
swollen +
red +, pink +, brown +  and green +
slender +, medium-sized +  and small +