Sphagnum majus subsp. norvegicum

K. I. Flatberg

Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 2: 1. 1987,.

Treatment appears in FNA Volume 27. Treatment on page 72. Mentioned on page 73.

Plants green, yellow-green, brownish green to golden brown; branches straight to slightly curved. Stem-leaves 1–1.4 mm, often spreading. Branch leaves 1.8–3.4 mm, straight to slightly subsecund; hyaline cells on convex surface with mostly 1 pore per fibril interval, pores more than 1/3 cell diameter. Spores 33–40 µm; distal surface finely and densely granulate.


Habitat: Habitat unclear due to recent taxonomic separation from subsp. majus, in North America, subsp. norvegicum seems to occur in weakly minerotrophic habitats such as poor sedge fens, lake edges, and floating mats
Elevation: low to moderate elevations

Distribution

V27 50-distribution-map.gif

Alta., B.C., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., Que., Sask., Yukon, Alaska, Conn., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., Pa., Wis., Eurasia?

Discussion

Sporophytes of subsp. norvegicum are uncommon. See discussion under 23. Sphagnum annulatum. Spore features are taken from from Flatberg’s description.

Selected References

None.

Lower Taxa

None.

"elongated" is not a number.

acute;narrowly obtuse +
Cyrus B. McQueen† +  and Richard E. Andrus +
K. I. Flatberg +
Sphagnum cuspidatum var. majus +
differentiated +
broad +  and narrow +
fascicles +, 5-ranked +  and unranked +
straight;slightly curved +
more slender and delicate +
ratio +, length +  and width +
undulate +, ovatelanceolate +  and narrowly ovatelanceolate +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
pendent +  and spreading +
1 +  and 2 +
slender +
reddish +  and green +
differentiated +
chlorophyllous +
alternating +
strengthened +
nonornamented +
dioicous +  and sexual +
trapezoidal +
enlarged +
fibrillose +
spherical +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
monoicous +, dioicous +  and sexual +
enlarged +
Alta. +, B.C. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Conn. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, Pa. +, Wis. +  and Eurasia? +
low to moderate elevations +
monoicous +, dioicous +  and sexual +
conspicuous +
isophyllous +, hemiisophyllous +  and anisophyllous +
Habitat unclear due to recent taxonomic separation from subsp. majus, in North America, subsp. norvegicum seems to occur in weakly minerotrophic habitats such as poor sedge fens, lake edges, and floating mats +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
triangular-lingulate +
inconspicuous +  and conspicuous +
/3 +  and 1 +
Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) +
tetrahedral +
septate +, porose +  and efibrillose +
triangular;lingulate +
usually smaller +
green;pale-brown +
differentiated +
with a few to numerous pores or pseudopores +  and porose +
Sphagnum sect. Mollusca +
Sphagnum majus subsp. norvegicum +
Sphagnum majus +
subspecies +
swollen +
brownish green +  and golden brown +