Difference between revisions of "Micromitrium synoicum"

(James) Austin in W. S. Sullivant

in W. S. Sullivant, Icon. Musc., suppl.: 22. 1874,.

Basionym: Ephemerum synoicum James Trans. Amer. Philos. Soc., n. s. 9: 106. 1865
Synonyms: Nanomitrium synoicum (James) Lindberg
Treatment appears in FNA Volume 27. Treatment on page 648. Mentioned on page 646, 647, 649.
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|genus=Micromitrium
 
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|species=Micromitrium synoicum

Revision as of 22:38, 27 May 2020

Plants scattered or gregarious in persistent, but not usually abundant protonemata, pale green. Stems 0.2–3.7 mm. Leaves erect, lanceolate, often with a broad base, narrowly acuminate, 0.85–2 × 0.27–0.4 mm, margins usually ± incurved beyond the middle, entire or nearly so. Sexual condition synoicous. Capsule dehiscing by a ring of differentiated cells at or distal to the equator, red-brown or red-black, globose or slightly flattened, slightly apiculate; exothecial cells in 1 layer, stomates none. Spores fewer than 100; various shapes, proximal face only rarely concave, 30–40 × 23–33 µm, dark red or dark brown.


Phenology: Capsules mature summer–winter.
Habitat: Drying or dried ponds, edges of lakes or streams, bare soil in open forests
Elevation: low to moderate elevations (10-500 m)

Distribution

V27 954-distribution-map.gif

Fla., Ga., Iowa, Ky., La., Mo., N.J., N.Y., N.C., Ohio, Oreg., Pa., e Asia (Japan).

Discussion

Calyptras in Micromitrium synoicum often are acentric, and as many as three capsules may mature within one perichaetium. Mature plants may persist with the capsule or capsules surrounded by only the bases of the leaves, the distal portions apparently eroded away.

Selected References

None.

Lower Taxa

None.
... more about "Micromitrium synoicum"
Virginia S. Bryan +
(James) Austin in W. S. Sullivant +
Ephemerum synoicum +
Fla. +, Ga. +, Iowa +, Ky. +, La. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Oreg. +, Pa. +  and e Asia (Japan). +
low to moderate elevations (10-500 m) +
Drying or dried ponds, edges of lakes or streams, bare soil in open forests +
Capsules mature summer–winter. +
in W. S. Sullivant, Icon. Musc., suppl.: +
Nanomitrium synoicum +
Micromitrium synoicum +
Micromitrium +
species +