Polytrichastrum alpinum var. sylvaticum

(Menzies) G. L. Smith

Sida 22: 547. 2006,.

Basionym: Polytrichum sylvaticum (Kindberg) Kindberg & Macoun Bot. Zeitung (Regensburg) 1: 74. 1802
Synonyms: Pogonatum alpinum var. macounii (Kindberg) Cardot & Thériot Pogonatum macounii unknown Polytrichum alpinum var. campanulatum (Hornschuch) Müller Hal. Polytrichum alpinum var. sylvaticum (Menzies) Lindberg
Treatment appears in FNA Volume 27. Treatment on page 127. Mentioned on page 126.
Revision as of 19:37, 24 September 2019 by FNA>Volume Importer

Stems to 14 cm, simple or sparingly branched. Leaves (9–)12–14(–19) mm, coarsely toothed. Capsule 5–8 × 1.5–2.2 mm, often ± zygomorphic and widest below the middle, suberect to inclined to almost horizontal.


Habitat: Soil, moist woods
Elevation: low to moderate elevations (to 1400 m)

Distribution

V27 149-distribution-map.gif

B.C., Alaska, Oreg., Wash.

Discussion

Variety sylvaticum is a robust plant of the Pacific Northwest with stems to 14 cm high, sharply serrate leaves to as much as 19 mm, and large, plump, cylindric capsules, often ± zygomorphic. The type was collected by Menzies somewhere on the Northwest coast; Pogonatum macounii was collected in a ravine at 1370 m on Vancouver Island. Polytrichum alpinum var. campanulatum has large, ovoid-gibbous, almost horizontal capsules and is probably distinct, but its distribution is poorly understood.

Selected References

None.

Lower Taxa

None.
Gary L. Smith Merrill +
(Menzies) G. L. Smith +
Polytrichum sylvaticum +
B.C. +, Alaska +, Oreg. +  and Wash. +
low to moderate elevations (to 1400 m) +
Soil, moist woods +
Pogonatum alpinum var. macounii +, Pogonatum macounii +, Polytrichum alpinum var. campanulatum +  and Polytrichum alpinum var. sylvaticum +
Polytrichastrum alpinum var. sylvaticum +
Polytrichastrum alpinum +
variety +