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"
persistent +  and deciduous +
differentiated +
falcate-secund +
1.15 cm11.5 mm <br />0.0115 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
straight +
0.8 cm8 mm <br />0.008 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
1mm +  and 2mm +
Robert R. Ireland Jr. +
Turner +
short to long +
differentiated +
1.15 cm11.5 mm <br />0.0115 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
concave +, ovatelanceolate +  and lanceolate +
1mm +  and 2mm +
microphyllous +
pseudomonoicous +, dioicous +, autoicous +  and sexual +
flagelliform +  and terete +
reproduction +  and asexual +
cucullate +
yellowish-brown +  and dark-brown +
arcuate +  and straight +
inclined +  and horizontal +
smooth +  and faintly striate +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
multistratose +  and 2-stratose +
generally orange +  and brown +
specialized +
papillose +  and mammillose +
pseudomonoicous +, dioicous +  and sexual +
inflated +
well-differentiated +  and differentiated +
percurrent;shortly excurrent +
1/12 +  and 1/7 +
toothed +
toothed +
pseudomonoicous +  and sexual +
spreading +, erect-patent +  and erect-appressed +
smooth +  and rugose +
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 +
reddish-brown +  and pitted-striolate +
0-1500 m +
Humus, soil, soil over rock, and rotten wood in coniferous woods, bogs, and tundra +
with few 2-stratose regions +  and 1-stratose +
enlarged +
falcate-secund +
1.15 cm11.5 mm <br />0.0115 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
papillose +, mammillose +, nonpitted +  and pitted +
flexuose +
acuminate +, ovate +  and lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
arcuate +  and straight +
long-rostrate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
nonpitted +  and pitted +
toothed +  and forked +
short-acuminate +, concave +  and ovate +
pitted-striolate +
16 +  and single +
papillose +  and striolate +
Capsules mature spring. +
undifferentiated +
Muscol. Hibern. Spic., +
smooth +  and papillose +
1 +  and 2 +
interrupted +
well-developed +
yellow;light-brown +
flexuose +  and straight +
2 +  and 5 +
elongate +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1/3 +  and 1/2 +
spherical +
with a few whitish rhizoids;naked +
3 cm30 mm <br />0.03 m <br /> (16 cm160 mm <br />0.16 m <br />) +
superficial +
Dicranum majus var. majus +
Dicranum majus +
variety +
deciduous +
lanceolate +
green +  and light green +