Microbryum starckeanum
Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.
Basionym: Weissia starckeana Hedwig Sp. Musc. Frond., 65. 1801
Synonyms: Pottia starckeana (Hedwig) Müller Hal.
Distal laminal cells weakly convex superficially, adaxial surface of the costa not mammillose. Seta elongate. Capsule stegocarpous or occasionally cleistocarpous, cylindrical. Spores smooth or tuberculate (seldom also weakly papillose), 22–30 µm.
Distribution
North Temperate Zone, disjunct to austral areas
Discussion
Varieties 6 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Capsules cleistocarpous (seldom operculum weakly differentiated but not dehiscent), spores both tuberculate and papillose, occasionally nearly smooth | Microbryum starckeanum var. fosbergii |
| 1 | Capsules stegocarpous, spores smooth or tuberculate | > 2 |
| 2 | Peristome present, usually well-developed but truncate apically, leaves stoutly mucronate to short-awned | Microbryum starckeanum var. starckeanum |
| 2 | Peristome absent or rudimentary, leaves very shortly mucronate | Microbryum starckeanum var. brachyodus |
... more about "Microbryum starckeanum"
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 +
cylindrical +
specialized +
absent +
bulging +
convex +
thickened +
thin +
brownish +
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 +
ligulate +
irregular +
untwisted +
absent +
rudimentary +
triangular +
differentiated +
not differentiated +
Bull. Buffalo Soc. Nat. Sci. +
straight +
oblique +
1;2 +
absent +
differentiated +
twisted +
elongate +
large +
branching +
sheathing +
Microbryum starckeanum +
Microbryum +
species +
apiculate +
ovate;short elliptical +
reflexed +
low +
higher +
1;2;4 +
rectangular +
thin +
bulbiform +
scattered +
brown;reddish-brown +
occasionally smaller than the perichaetiate +