Physcomitrium pyriforme

(Hedwig) Hampe

Linnaea 11: 80. 1837,.

Basionym: Gymnostomum pyriforme Hedwig Sp. Musc. Frond., 38. 1801
Synonyms: Physcomitrium californicum E. Britton Physcomitrium drummondii E. Britton Physcomitrium kellermanii E. Britton Physcomitrium megalocarpum Kindberg Physcomitrium pygmaeum James Physcomitrium turbinatum (Michaux) E. Britton
Treatment appears in FNA Volume 27. Treatment on page 198. Mentioned on page 196, 197, 199.

Plants light green or yellowish green. Stems 0.2–15(–25) cm. Leaves obovate to ovate-lanceolate, distal leaves 2–5 mm; margins toothed, sometimes nearly smooth distally; percurrent to rarely short-excurrent. Specialized asexual reproduction absent. Seta (1–)6–15(–30) mm. Capsule exserted, 1–3 mm, globose-pyriform when young, highly variable in shape when old, urceolate to pyriform; neck short, distinct; exothecial cells irregular hexagonal; suboral cells consisting of 5–17 rows of rectangular cells. Spores (24–)46–60(–90) µm, papillose.


Phenology: Capsules mature late fall–spring.
Habitat: Wet soil in disturbed places
Elevation: low to high elevations

Distribution

V27 269-distribution-map.gif

Alta., B.C., Man., N.B., N.S., Ont., Que., Sask., Ala., Ark., Calif., Colo., Conn., Del., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., S.C., S.Dak., Utah, Vt., Wash., W.Va., Wis., Wyo., Mexico, Eurasia, Africa, Australia.

Discussion

Physcomitrium pyriforme is morphologically variable and widespread across the continent. Plant size, leaf characters, and shape of the capsule vary from place to place and often within populations.

Selected References

None.

Lower Taxa

None.
... more about "Physcomitrium pyriforme"
Terry T. McIntosh +
(Hedwig) Hampe +
Gymnostomum pyriforme +
Alta. +, B.C. +, Man. +, N.B. +, N.S. +, Ont. +, Que. +, Sask. +, Ala. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, S.C. +, S.Dak. +, Utah +, Vt. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Mexico +, Eurasia +, Africa +  and Australia. +
low to high elevations +
Wet soil in disturbed places +
Capsules mature late fall–spring. +
Physcomitrium californicum +, Physcomitrium drummondii +, Physcomitrium kellermanii +, Physcomitrium megalocarpum +, Physcomitrium pygmaeum +  and Physcomitrium turbinatum +
Physcomitrium pyriforme +
Physcomitrium +
species +