Compilation
Polytrichum perigoniale

3 Images see all

Previous
Next

Name

Identification
Polytrichum perigoniale Michx. [family POLYTRICHACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Polytrichum perigoniale

Flora

Entry for Polytrichum commune var. perigoniale (Michaux) Hampe [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 27,
Names
Polytrichum commune var. perigoniale (Michaux) Hampe [family ], Linnaea, 13: 44. 1839,
Polytrichum perigoniale Michaux [family ], Fl. Bor.-Amer., 2: 293. 1803
Treatment Author(s)
Gary L. Smith Merrill
Information
Plants in compact, rather dense tufts. Stems to 6 cm. Leaves densely imbricate and crowded, somewhat less sharply toothed than in var. commune; marginal cells of lamellae in section narrow, more shallowly grooved; peri-chaetial leaves conspicuous and ribbon-like, exceeding the foliage leaves, mostly hyaline, subentire, ending in a long, nearly smooth awn. Capsule short-rectangular to cubic.
Altitude range
mainly low elevations;
Distribution
Europen Africa.USA AlaskaUSA Ark.USA Conn.USA Fla.USA Ill.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Mo.USA N.J.USA N.Y.USA N.C.USA Okla.USA Pa.USA R.I.USA S.C.USA Tenn.USA Va.USA Wash.USA Wyo.Canada B.C.Canada N.B.Canada N.S.Canada Ont.Canada Yukon
Discussion
Variety perigoniale has a distinctly “bushy” aspect, the leaves thick set and densely imbricate. The typical expression is common on the Atlantic coastal plain, as in the Pine Barrens of New Jersey (the type was from Carolina). Elsewhere, its distribution and ecology are poorly documented, but it is probably not simply a dry land phase (H. A. Crum and L. E. Anderson 1981), occurring sporadically throughout the range of the species. The perichaetial leaves are not only longer than the foliage leaves, but distinctly ribbon-like, irregularly twisted and curled when dry.

Related Materials