Difference between revisions of "Weissia occidentalis"

(Flowers) A. H. Stoneburner

Bryologist 88: 310. 1986,.

Basionym: Astomum occidentale Flowers Bryologist 76: 286. 1973
Treatment appears in FNA Volume 27. Treatment on page 515. Mentioned on page 513.
FNA>Volume Importer
FNA>Volume Importer
(No difference)

Revision as of 19:40, 24 September 2019

Leaves short-lanceolate to elliptic, base weakly or not differentiated in shape, shoulders absent, distal laminal margins sharply incurved or inrolled, apex plane to channeled, acute, mucro usually weak, of 1–3 cells; costal adaxial stereid band smaller than the abaxial; distal laminal cells 7–10 µm wide. Sexual condition autoicous or paroicous. Seta elongate, 0.1–0.15 cm. Capsule cleistocarpic, short-elliptic, operculum not differentiated, peristome absent.


Elevation: High elevations (1800 m).

Discussion

Weissia occidentalis is known only from the type collection (Millard County, House Mountains, Swasey Gulch, 1800 m, Flowers 2339, COLO). It has the leaves typical of W. ligulifolia, these being long-elliptical and sharply incurved distally. Weissia inoperculata is superficially similar in its cleistocarpic capsule and elongate seta, but differs by the longer seta and leaves similar to those of Trichostomum brachydontium—stoutly mucronate, broadly elliptical and nearly plane throughout.

Selected References

None.

Lower Taxa

None.