Tortula laureri

(Schultz) Lindberg

Öfvers. Kongl. Vetensk.-Akad. Förh. 21: 243. 1864,.

Basionym: Trichostomum laureri Schultz Flora 10: 163. 1827
Synonyms: Desmatodon laureri (Schultz) Bruch & Schimper
Treatment appears in FNA Volume 27. Treatment on page 601. Mentioned on page 587, 590, 599.

Leaves elliptic, apex broadly acute to rounded-acute, mucronate or apiculate, occasionally obtuse, margins recurved at mid leaf, bordered throughout or in lower 2/3 with 2(–3) rows of narrower, short- to long-rectangular, thicker-walled, somewhat less papillose cells that are 1–2-stratose; costa percurrent or short-excurrent, lacking an adaxial pad of cells, distally narrow, 3–4 cells across the convex adaxial surface; distal laminal cells hexagonal to rectangular, 16–21 µm wide, 1–2:1, strongly 2-fid papillose. Sexual condition autoicous. Sporophytes exerted. Seta 0.9–1.5 cm. Capsule stegocarpic, not systylius, cylindric, horizontal or pendent, nearly straight, urn 1.8–2.5 mm; peristome 300–500 µm, teeth 16, weakly twisted to twisted 1 turn, divided nearly to the base into 2–3 branches and variously perforate, basal membrane low, ca. 50 µm; operculum 0.5–1.2 mm. Spores 18–23(–35) µm, spheric, densely papillose.


Phenology: Capsules mature summer.
Habitat: Soil, rock crevices, especially calcareous substrates, tundra, essentially subalpine
Elevation: high elevations (2800-3800 m)

Distribution

V27 864-distribution-map.gif

Greenland, Alta., B.C., Nfld. and Labr. (Nfld.), N.W.T., Nunavut, Alaska, Colo., Mont., Utah, Europe, Asia, s Africa.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Tortula laureri"
Richard H. Zander +  and Patricia M. Eckel +
(Schultz) Lindberg +
Trichostomum laureri +
Greenland +, Alta. +, B.C. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, Nunavut +, Alaska +, Colo. +, Mont. +, Utah +, Europe +, Asia +  and s Africa. +
high elevations (2800-3800 m) +
Soil, rock crevices, especially calcareous substrates, tundra, essentially subalpine +
Capsules mature summer. +
Öfvers. Kongl. Vetensk.-Akad. Förh. +
Desmatodon laureri +
Tortula laureri +
species +