Andreaea heinemannii

Hampe & Müller Hal.

Bot. Zeitung (Berlin)4: 324, plate 2. 1846,

Synonyms: Andreaea blyttii angustata Andreaea blyttii obtusifolia Andreaea crassinervia obtusifolia
Found in FNA Volume 27. Treatment on page 106. Mentioned on page 103.
Plants brown to black. Leaves erect to spreading, occasionally secund, broadly subulate from an ovate base, widest in proximal half of leaf, apex symmetric; costa present, percurrent and filling the leaf apices, weak, flattened distally, often not reaching the leaf insertion; leaf margins entire or occasionally weakly crenulate; basal laminal cells quadrate to occasionally short-rectangular, a few marginal cells rectangular, walls usually sinuose; medial laminal cells quadrate, 1-stratose or sometimes 2-stratose in patches, lumens rounded-quadrate; laminal papillae rare, low. Sexual condition apparently autoicous; perichaetial leaves differentiated, convolute-sheathing. Spores 20–30(–40) µm.

Habitat: Acidic rocks
Elevation: low to moderate elevations

Distribution

Greenland, B.C., Yukon, Alaska, Calif., Colo., Oreg., s Europe, se Asia, Atlantic Islands (Canary Islands, Kerguelen Island, Madiera Island).

Discussion

Andreaea heinemannii is a relatively small species in the genus, having irregularly divergent leaf apices of a flat subula. The weak costa commonly does not reach the leaf insertion, and this species may be mistaken for A. rupestris.

References

None.

Facts about "Andreaea heinemannii"
AuthorRichard H. Zander +
Elevationlow to moderate elevations +
HabitatAcidic rocks +
IllustratorPatricia M. Eckel +
ReferenceNone +
SynonymAndreaea blyttii angustata +, Andreaea blyttii obtusifolia + and Andreaea crassinervia obtusifolia +
Taxon nameAndreaea heinemannii +
Taxon parentAndreaea +
Taxon rankspecies +
VolumeVolume 27 +