Difference between revisions of "Scleropodium occidentale"

B. E. Carter

Bryologist 115: 224, fig. 1. 2012.

Endemic
Treatment appears in FNA Volume 28. Treatment on page 467. Mentioned on page 464.
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Latest revision as of 21:37, 5 November 2020

Plants medium-sized to large, in moderately loose mats, green to golden green. Stems to 5 cm, leafy shoots 0.8–1.2 mm wide, branches julaceous. Stem leaves closely imbricate, ovate to ovate-lanceolate, 1–2 × 0.5–1.2 mm; margins often widely incurved distally, entire or with serrulations restricted to acumen; apex acute to rounded or cuspidate, occasionally acuminate; alar cells quadrate to short-rectangular, 9–12 × 10–13 µm, walls moderately thick, region small, indistinctly delimited; laminal cells 45–60 × 4–7 µm; basal juxtacostal cells elongate, 10–20 × 5–7 µm. Seta 0.9–1.6 cm, roughened throughout. Capsule inclined. Spores 15–19 µm.


Habitat: Sub aqua tic habitats
Elevation: low to high elevations (0-2000 m)

Distribution

V28 729-distribution-map.gif

B.C., Calif., Nev., Oreg., Wash.

Discussion

Scleropodium occidentale is morphologically and ecologically similar to S. obtusifolium; however, it differs in having a longer, more robust costa that ends in a spine, and in DNA markers. It also often has acute leaf apices unlike the rounded apex typical of S. obtusifolium. The branches are tumid and often arching.

Selected References

None.

Lower Taxa

None.