Microbryum starckeanum

(Hedwig) R. H. Zander

Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.

Basionym: Weissia starckeana Hedwig Sp. Musc. Frond., 65. 1801
Synonyms: Pottia starckeana (Hedwig) Müller Hal.
Treatment appears in FNA Volume 27. Treatment on page 628. Mentioned on page 629.

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

V27 920-distribution-map.gif

North Temperate Zone, disjunct to austral areas

Discussion

Varieties 6 (3 in the flora).

Selected References

None.

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"
elongate +, shortrectangular +  and quadrate +
weakly concave +  and broadly channeled +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
of 1;2 rows +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +
(Hedwig) R. H. Zander +
round +  and semicircular +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
not differentiated +
Weissia starckeana +
obovoid +
mitrate +  and conic-cucullate +
cleistocarpous +  and stegocarpous +
cylindrical +
synoicous +, paroicous +, monoicous +, sexual +  and asexual +
vesiculose +  and parenchymatous +
3 (?) +  and 6 (?) +
elongate-rhomboid +  and elongate +
enlarged +
tomentose +  and bare +
percurrent +  and excurrent +
serrulate +  and entire +
rhomboidal;shortrectangular;quadrate;hexagonal +
enlarged +  and small to somewhat +
North Temperate Zone +  and disjunct to austral areas +
differentiated +
multicellular +
yellow +  and orange-red or red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
spathulate +  and ovate +
reduced +
occasionally less papillose and somewhat thicker walled +
dentate +  and entire +
papillose +
photosynthetic +
branching +, hollow +  and simple +
1 +  and 6 +
flattened +  and 2-fid +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
1 (?) +  and 2 (?) +
not differentiated +
Bull. Buffalo Soc. Nat. Sci. +
straight +
elongate +
short;elongate +
2 +  and 1 +
red +  and laminal +
rounded-triangular +  and rounded-pentagonal +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Pottia starckeana +
Microbryum starckeanum +
Microbryum +
species +
ovate;short elliptical +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
ovate +, elliptical +  and lanceolate +
yellow distally and red +, orange +, red +  and yellow +
rectangular +
stemless +  and perigoniate +
brown;reddish-brown +
plant +  and gregarious +
occasionally smaller than the perichaetiate +