Andreaea megistospora

B. M. Murray

Bryologist90: 18, figs. 9–23, 25–28. 1987,

Synonyms: Andreaea megistospora epapillosa Andreaea megistospora epapillosa
Found in FNA Volume 27. Treatment on page 106. Mentioned on page 103, 109.
Plants brown to black. Leaves erect-spreading or secund, subulate-lanceolate from an ovate base, widest in proximal half of leaf, apex symmetric; costa present, percurrent and sometimes filling the leaf apices, strong but narrow, bulging abaxially, usually reaching the leaf insertion; leaf margins entire or occasionally weakly crenulate; basal laminal cells quadrate to short-rectangular, marginal cells mostly rounded-quadrate, walls weakly pitted-sinuose; medial laminal cells rounded-quadrate, 1-stratose or 2-stratose in patches or completely, lumens rounded; laminal papillae smooth to papillose. Sexual condition cladautoicous or gonioatoicous; perichaetial leaves differentiated, convolute-sheathing. Spores (40–)50–90(–110) µm.

Habitat: Acidic rock
Elevation: low to moderate elevations

Distribution

B.C., Alaska, Wash., nw Europe.

Discussion

Andreaea megistospora is distinguished from the similar A. rothii by its large spores, and may simply prove to be a large form of the latter. The variety epapillosa is a minor variant commonly occurring in mixture with the typical variety, and doubtfully warrants a name.

References

None.

Facts about "Andreaea megistospora"
AuthorRichard H. Zander +
Elevationlow to moderate elevations +
HabitatAcidic rock +
IllustratorPatricia M. Eckel +
ReferenceNone +
SynonymAndreaea megistospora epapillosa +
Taxon nameAndreaea megistospora +
Taxon parentAndreaea +
Taxon rankspecies +
VolumeVolume 27 +