Tortula laureri

(Schultz) Lindberg

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

Basionyms: 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 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.

"um" is not declared as a valid unit of measurement for this property."um" is not declared as a valid unit of measurement for this property.

... more about "Tortula laureri"
smooth +  and papillose +
smooth +  and papillose +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +  and Patricia M. Eckel +
(Schultz) Lindberg +
semicircular +  and elliptical +
semicircular +, elliptical +  and rounded +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
differentiated +
Trichostomum laureri +
obovoid +
cucullate +
0.25 cm2.5 mm <br />0.0025 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
not systylius +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
dark-brown +  and yellowish-brown +
cleistocarpous +  and stegocarpous +
pendent +  and horizontal +
cylindric +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
monoicous +, dioicous +  and sexual +
thicker-walled +
1 (?) +  and 3 (?) +
papillose +
long-rectangular +
narrower +
tomentose +  and bare +
short-excurrent +  and percurrent +
subpercurrent +
autoicous +  and sexual +
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) +
differentiated +
multicellular +
Soil, rock crevices, especially calcareous substrates, tundra, essentially subalpine +
somewhat larger +
yellow +  and orange-red or red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
obovate +  and spathulate ovate +
reduced +
in lower 2/3 +  and bordered +
serrulate +  and entire +
smaller +
rostrate;long-conic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
differentiated +
photosynthetic +
simple +  and hollow +
4 +  and 6 +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Capsules mature summer. +
Öfvers. Kongl. Vetensk.-Akad. Förh. +
1-2-stratose +
straight +
not twisted +  and twisted +
brown;yellowish-brown +
elongate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
2 +  and 1 +
orange +, red +, yellow +, laminal +  and light-brown +
spheric +
rounded-pentagonal +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Desmatodon laureri +
Tortula laureri +
species +
ovoid;cylindric +
perforate +, weakly twisted +  and twisted +
rudimentary +
1 +  and 16 +
divided +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
yellow distally and red +, orange +, red +  and yellow +
rectangular +
thickened +, thin +  and thicker +
stemless +  and perigoniate +
yellowbrown;dark-brown +
occasionally smaller than the perichaetiate +