Ulota curvifolia

(Wahlenberg) Liljeblad

Utkast Sv. Fl. ed. 3, 546. 1816.

Illustrated
Basionym: Orthotrichum curvifolium Wahlenberg Fl. Lapp., 365. 1812
Synonyms: O. crispum var. curvifolium (Wahlenberg) Wahlenberg Ulota americana
Treatment appears in FNA Volume 28. Treatment on page 75. Mentioned on page 73, 74, 77.

Plants to 0.3 cm. Stems erect. Stem-leaves flexuose-crisped and loosely appressed, not contorted or twisted when dry, lanceolate, 1–2.2 mm; base ovate; margins reflexed; apex narrowly obtuse; basal laminal cells linear, grading to quadrate at margin; distal cells 8–12 µm, papillae conic or 2-fid, large. Specialized asexual reproduction absent. Sexual condition autoicous; perichaetial leaves not differentiated from stem-leaves. Seta 1.5–3 mm. Capsule ovate-oblong when mature, oblong to oblong-cylindric when old, 1.2–1.7 mm, strongly 8-ribbed 3/4 length, mouth wide but constricted below mouth or evenly tapering to seta from mouth; stomata in neck; peristome double; exostome teeth reflexed, incurved, smooth; endostome segments 8, smooth. Calyptra conic, very hairy. Spores 16–20 µm.


Habitat: Acidic rock in montane and subarctic areas
Elevation: low to high elevations

Distribution

V28 114-distribution-map.gif

Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Alaska, n Europe, Asia

Discussion

Ulota curvifolia is a Canadian shield species in eastern North America, with a range from the northern shore of Lake Huron and Lake Superior north to Hudson Bay and Baffin Island westward across the subarctic of the Northwest Territories and southward in the Canadian Rockies to Alberta and southern British Columbia. Ulota curvifolia grows on rock and has strongly papillose, thick-walled distal laminal cells and stiffly flexuose leaves. Ulota hutchinsiae has a more southerly distribution, less papillose distal laminal cells, and straight leaves. As with most other species of the genus, U. curvifolia has a rich chestnut brown coloration that helps identify it in the field.

Selected References

None.

Lower Taxa

None.

"/4" is not declared as a valid unit of measurement for this property."wide" is not a number.

... more about "Ulota curvifolia"
awned +  and apiculate +
Dale H. Vitt +
(Wahlenberg) Liljeblad +
Orthotrichum curvifolium +
erect +  and ascending +
oblong;oblong-cylindric +
constricted +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
differentiated +
hexagonal-rounded;elliptic +
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Alaska +, n Europe +  and Asia +
low to high elevations +
linear-lanceolate +
incurved +  and reflexed +
striate +  and papillose +
rectangular;elliptic +
connate +
occasional +
Acidic rock in montane and subarctic areas +
0.1 cm1 mm <br />0.001 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
lanceolate +  and flexuose-crisped +
spreading-flexuose +, flexuose +  and straight +
erect-spreading +
not rugose +
linear-lanceolate +, oblong-lanceolate +, lanceolate +, crisped +  and not crisped +
denticulate +, plane to revolute +  and plane +
dioicous +, autoicous +  and sexual +
entire +  and 8-ribbed +
puckered +
constricted +
rostrate;convex;conic +
mammillose +  and smooth +
autoicous +, sexual +  and asexual +
2-fid +  and conic +
lateral +  and terminal +
Utkast Sv. Fl. ed. +
sinistrorse +, dextrorse +  and erect +
tapering +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Illustrated +
hairy +, smooth +  and papillose-striate +
several +  and 16 +
papillose +
superficial +
O. crispum var. curvifolium +  and Ulota americana +
Ulota curvifolia +
species +
specialized +
cladautoicous +, pseudautoicous +, dioicous +  and sexual +
incrassate +
olive brown;reddish-brown;olive brown;reddish-brown;dark green +
small +  and medium-sized +