Microbryum davallianum var. conicum
Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.
Basionym: Gymnostomum conicum Wareham Sp. Musc. Frond. Suppl. 1(1): 26, plate 9. 1811
Synonyms: Pottia starckeana subsp. conica (Schwägrichen) D. P. Chamberlain Pottia texana
Treatment appears in FNA Volume 27. Treatment on page 630.
Revision as of 07:13, 30 July 2020 by imported>Volume Importer
Capsule narrow-mouthed when dehisced, with usually 2 or more rows of thickened cells below mouth; peristome rudimentary or absent. Spores papillose, 27–34 µm.
Phenology: Capsules mature late winter and spring (Feb–Apr).
Habitat: Soil
Elevation: low elevations
Distribution
Calif., Nebr., Okla., Tex., Mexico (Baja California), Europe, sw Asia, w, s Africa, Pacific Islands (New Zealand)
Discussion
The San Marcos, Texas specimen (MICH) of var. conicum has a flaring mouth like that of var. davallianum. Another Texas specimen (Orcutt 5565, CANM, WTU) has a weak peristome (a thin line of proximal membrane).
Selected References
None.
Lower Taxa
None.
... more about "Microbryum davallianum var. conicum"
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 +
Present +
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 +
absent +
rudimentary +
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. conicum +
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 +