Microbryum davallianum var. commutatum
Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.
Basionym: Pottia commutata Laubm. Deutschl. 1: 537, fig. 160. 1888
Synonyms: Pottia davalliana subsp. commutata (Limpricht) Podpera
Treatment appears in FNA Volume 27. Treatment on page 630.
Capsule narrow-mouthed when dehisced, with usually 2 or more rows of thickened cells below mouth; peristome well developed though apically truncate. Spores papillose, 27–34 µm.
Phenology: Capsules mature late winter (Feb).
Habitat: Soil
Elevation: low elevations
Distribution
Calif., Europe, sw Asia, n Africa
Discussion
Variety commutatum is known only from California (Berkeley, Howe 79, US), last collected in 1894, from which station it is disjunct to the Old World.
Selected References
None.
Lower Taxa
None.
... more about "Microbryum davallianum var. commutatum"
absent +
differentiated +
absent +
absent +
not mammillose +
revoluble +
persistent +
absent +
of 1;2 rows +
acute +
absent +
differentiated +
usually slightly wider +
trabeculate +
absent +
usually ovate;oblong +
not differentiated +
obovoid +
papillose +
narrow-mouthed +
cylindrical +
specialized +
absent +
bulging +
convex +
thickened +
thin +
brownish +
thickened +
absent +
2-stratose +
stacked +
9mm;16mm +
recurved +
1-stratose +
rhomboidal;shortrectangular;quadrate;hexagonal +
spiculose +
filiform +
central +
differentiated +
multicellular +
absent +
common +
asexual +
absent +
absent +
enlarged +
differentiated +
contorted +
appressed +
spreading +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
ligulate +
appressed +
fragile +
spreading +
occasionally less papillose and somewhat thicker walled +
recurved +
papillose +
plane +
involute +
thicker +
absent +
low-conic +
photosynthetic +
tall +
absent +
sheathing +
long-oval +
usually larger +
truncate +
developed +
ligulate +
irregular +
untwisted +
absent +
rudimentary +
triangular +
differentiated +
not differentiated +
Bull. Buffalo Soc. Nat. Sci. +
straight +
oblique +
1;2 +
absent +
differentiated +
twisted +
elongate +
spiculose +
granulose +
large +
branching +
sheathing +
Microbryum davallianum var. commutatum +
Microbryum davallianum +
variety +
apiculate +
ovate;short elliptical +
reflexed +
low +
higher +
1;2;4 +
rectangular +
thin +
bulbiform +
scattered +
brown;reddish-brown +
occasionally smaller than the perichaetiate +