Mnium lycopodioides

Schwagrichen

Sp. Musc. Frond. Suppl. 2(2,1): 24, plate 160 [bottom]. 1826.

Illustrated
Synonyms: Mnium ambiguum H. Müller
Treatment appears in FNA Volume 28. Treatment on page 226. Mentioned on page 224.

Plants (1–) 2–4 (–7) cm. Stems red, brown, or sometimes yellowish-brown. Leaves green to dark green, contorted and twisted when dry, narrowly elliptic, ovate-elliptic, or ovate-oblong, 3–4 (–6.5) mm; base long-decurrent; margins reddish-brown, 2-stratose, toothed to below mid leaf, teeth paired or sometimes single near apex, long, sharp, occasionally short and blunt; apex acute, rounded-acute, or obtuse, apiculate or cuspidate, cusp sometimes toothed; costa percurrent or excurrent, distal abaxial surface toothed; medial laminal cells ± isodiametric or short-elongate, (17–) 22–40 µm, smaller towards margins, often in longitudinal rows, not in diagonal rows, usually strongly collenchymatous, blue postmortal color absent; marginal cells linear, in 2 or 3 rows. Sexual condition dioicous. Seta single. Capsule yellowish or yellowbrown, 2.5–6 (–7) mm; operculum short-rostrate; exostome greenish yellow. Spores 19–30 µm.


Phenology: Capsules mature summer.
Habitat: Shaded, often calcareous rock or cliffs, banks along streams, tree bases, logs
Elevation: low to high elevations

Distribution

V28 359-distribution-map.gif

Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Yukon, Conn., Idaho, Maine, Mass., Mich., Minn., Mont., Nebr., N.H., N.Y., Oreg., Pa., R.I., S.Dak., Vt., Wash., Wyo., Europe, Asia

Discussion

Mnium lycopodioides is often difficult to separate from M. marginatum. This is reflected in herbarium collections where many, in particular sterile, specimens of M. marginatum have been identified as M. lycopodioides. Mnium lycopodioides usually has narrower leaves, although some collections of M. marginatum have narrow leaves, with narrow leaf margins composed of two or three rows of cells. Mnium lycopodioides has a shorter rostrum on the calyptra, a useful character with fertile collections.

Selected References

None.

Lower Taxa

None.
... more about "Mnium lycopodioides"
blackish +, orange-yellow +, reddish-brown +, yellowish-brown +, yellowish green +, red +, brown +  and yellow +
cuspidate +  and apiculate +
Obtuse (?) +, Rounded-acute (?) +  and Acute (?) +
Terry T. McIntosh +  and Steven G. Newmaster +
Schwagrichen +
red +  and yellowish +
long-decurrent +
cucullate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
yellowbrown +  and yellowish +
horizontal;pendent +
oblong-cylindric +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
undifferentiated +
2 (?) +  and 1 (?) +
nodulose +
excurrent +  and percurrent +
ending well before apex +  and subpercurrent +
toothed +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Yukon +, Conn. +, Idaho +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nebr. +, N.H. +, N.Y. +, Oreg. +, Pa. +, R.I. +, S.Dak. +, Vt. +, Wash. +, Wyo. +, Europe +  and Asia +
low to high elevations +
brown +  and yellowish +
greenish yellow +
lanceolate-acuminate +
Shaded, often calcareous rock or cliffs, banks along streams, tree bases, logs +
crowded +  and distant +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
green +  and dark green +
ovate-oblong +, ovate-elliptic +  and elliptic +
larger +  and small +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
reddish-brown +
dioicous +  and sexual +
rhomboidal +  and short-linear +
short-elongate +  and isodiametric +
short-rostrate +
Capsules mature summer. +
Sp. Musc. Frond. Suppl. +
smaller +  and larger +
flexuose +  and straight +
elongate +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Illustrated +
spheric +
not dendroid +, branched +  and simple +
yellowish-brown +, brown +  and red +
Mnium ambiguum +
Mnium lycopodioides +
species +
blunt +  and sharp +
open;compact +