Dicranum majus var. majus

Treatment appears in FNA Volume 27. Treatment on page 405. Mentioned on page 406.

Plants in loose tufts, green to light green, glossy. Leaves falcate-secund, flexuose, 8–11.5(–15) mm; margins serrate in distal half; costa percurrent to shortly excurrent, toothed distally on abaxial surface, with a double row of guide cells.


Phenology: Capsules mature spring.
Habitat: Humus, soil, soil over rock, and rotten wood in coniferous woods, bogs, and tundra
Elevation: 0-1500 m

Distribution

V27 573-distribution-map.gif

Greenland, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Yukon, Alaska, Maine, Mass., R.I., Wash., Europe, Asia.

Discussion

Variety majus is known by its glossy, long (8–15 mm), falcate-secund leaves with serrate margins in the distal half, by its costae with two rows of guide cells (seen in cross section), the abaxial surface toothed and not ridged distally, and by its aggregate setae (2–5 per perichaetium).

Selected References

None.

Lower Taxa

None.

... more about "Dicranum majus var. majus"
Robert R. Ireland Jr. +
Turner +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Yukon +, Alaska +, Maine +, Mass. +, R.I. +, Wash. +, Europe +  and Asia. +
0-1500 m +
Humus, soil, soil over rock, and rotten wood in coniferous woods, bogs, and tundra +
Capsules mature spring. +
Muscol. Hibern. Spic., +
Dicranum majus var. majus +
Dicranum majus +
variety +