Difference between revisions of "Pleurozium"

(Sullivant) Mitten

J. Linn. Soc., Bot. 12: 537. 1869.

Etymology: Greek pleura, side, and ozos, branch, alluding to pinnate branching
Basionym: Hypnum sect. Pleurozium Sullivant in A. Gray, Manual ed. 2, 668. 1856
Treatment appears in FNA Volume 28. Treatment on page 334. Mentioned on page 326, 647.
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Latest revision as of 21:36, 5 November 2020

Stems creeping to erect-ascending, 1–3 mm wide across leafy stem, monopodial, irregularly to regularly 1 (or 2)-pinnate; paraphyllia absent. Stem leaves loosely appressed to spreading, heteromallous, not falcate-secund, distinctly crowded and imbricate at stem apices, ovate to elliptic, wrinkled when dry, not plicate or rugose when moist, 1.5–2.8 mm; base short-decurrent; margins entire except at apex; apex rounded to obtuse, often appearing bluntly apiculate because of broadly incurved margins; costa double to nearly ecostate, less than 1/4 leaf length; alar cells differentiated; laminal cells smooth. Branch leaves elliptic to lanceolate. Capsule inclined to horizontal; operculum conic; exostome teeth reticulate proximally; endostome segments broadly perforate.

Distribution

North America, Mexico, Central America, South America, Eurasia, Africa, Atlantic Islands, cool temperate to subarctic zones.

Discussion

Species 2 (1 in the flora).

Pleurozium quitense (Mitten) B. H. Allen & Magill is found in the Andes mountain range of Bolivia, Ecuador, and Peru.

Selected References

None.

... more about "Pleurozium"
Joseph R. Rohrer +
(Sullivant) Mitten +
Hypnum sect. Pleurozium +
North America +, Mexico +, Central America +, South America +, Eurasia +, Africa +, Atlantic Islands +  and cool temperate to subarctic zones. +
Greek pleura, side, and ozos, branch, alluding to pinnate branching +
J. Linn. Soc., Bot. +
Pleurozium +
Hylocomiaceae +