Tortula guepinii

(Bruch & Schimper) Brotherus in H. G. A. Engler and K. Prantl

in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 214[I,3]: 430. 1902,.

Basionyms: Desmatodon guepinii Bruch & Schimper Bryol. Europ. 2: 58, plate 133. 1843
Treatment appears in FNA Volume 27. Treatment on page 599. Mentioned on page 589, 590.

Leaves ovate to short-elliptic, apex broadly acute, awned, margins recurved in mid 4/5 of leaf, usually bordered distally with 2–4 rows of smooth or less papillose, somewhat thicker-walled cells; costa excurrent in the awn, lacking an adaxial pad of cells, distally narrow, 2–4 cells across the convex adaxial surface; distal laminal cells hexagonal, 16–19 µm wide, 1: 1, papillose with 4–6 1-fid to 2-fid papillae. Sexual condition autoicous. Sporophytes exerted. Seta 0.7–0.8 cm. Capsule stegocarpic, not systylius, cylindric, erect and nearly straight, urn 1.2–1.4 mm; peristome ca. 500 µm, of 16 teeth, weakly twisted, divided to below the middle, basal membrane to 75 µm high; operculum ca. 0.8 mm. Spores 13–18 µm, spheric, papillose.


Phenology: Capsules mature spring.
Habitat: Soil
Elevation: low elevations

Distribution

V27 859-distribution-map.gif

Ariz., Calif., Colo., Nev., N.Mex., Tex., Wyo., Mexico (Baja California), sw Europe

Discussion

Tortula guepinii resembles T. hoppeana of montane and subarctic distribution in North America and elsewhere, but it is smaller, with leaves less than 2 mm, and cells of the leaf margin are distinctly less papillose at the apex. Tortula plinthobia of the southeastern and southwestern United States has distal laminal cells only 10–13 µm wide.

Selected References

None.

Lower Taxa

None.

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

... more about "Tortula guepinii"
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 +
(Bruch & Schimper) Brotherus in H. G. A. Engler and K. Prantl +
semicircular +  and elliptical +
semicircular +, elliptical +  and rounded +
papillose +  and smooth +
usually slightly wider +
0um +  and 75um +
usually ovate;oblong +
differentiated +
Desmatodon guepinii +
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 +
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 +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
subpercurrent +
autoicous +  and sexual +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +, Tex. +, Wyo. +, Mexico (Baja California) +  and sw Europe +
low elevations +
differentiated +
multicellular +
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 +
ovate +  and short-elliptic +
reduced +
serrulate +  and entire +
smaller +
rostrate;long-conic +
0.8 cm8 mm <br />0.008 m <br /> (?) +
differentiated +
photosynthetic +
simple +  and hollow +
4 +  and 6 +
4-6-1-fid +  and 2-fid +
lateral +  and terminal +
lateral +  and terminal +
500 cm5,000 mm <br />5 m <br /> (?) +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Capsules mature spring. +
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. +
straight +
not twisted +  and twisted +
brown;yellowish-brown +
elongate +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 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 +, Phascum +, Pottia +  and Protobryum +
Tortula guepinii +
species +
ovoid;cylindric +
rudimentary +
triangular +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 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 +