Ulota barclayi

Mitten

J. Linn. Soc., Bot. 8: 26. 1864.

Endemic
Treatment appears in FNA Volume 28. Treatment on page 74. Mentioned on page 73.

Plants to 1 (–2.5) cm. Stems erect. Stem-leaves slightly crisped and curved when dry, narrowly lanceolate to oblong-lanceolate, 1.5–2.5 mm; base oblong; margins broadly reflexed or plane; apex acute; basal laminal cells hexagonal-rounded, not pigmented, walls thin; distal cells 8–12 µm, smooth or papillae essentially absent. Specialized asexual reproduction absent. Sexual condition autoicous; perichaetial leaves differentiated from stem-leaves or not. Seta 1.8–3.2 mm. Capsule oblong-ovate when mature, oblong-cylindric when old and dry, 1–2 mm, strongly 8-ribbed 3/4 length, mouth wide but constricted below mouth or evenly tapering to seta from mouth; stomata in neck and proximal capsule; peristome double; exostome teeth ± split to 16, reflexed, evenly papillose; endostome segments 8, slightly papillose. Calyptra short-conic, sparsely hairy or hairs few, near apex. Spores 16–21 µm.


Habitat: Tree trunks and branches
Elevation: low elevations

Discussion

Ulota barclayi, described from Alaska, may be a species distinct from the eastern Asian U. japonica. From other West Coast species of the genus, these populations differ by leaves only slightly twisted and curved, strongly differentiated perichaetial leaves, cushion-forming erect plants, reflexed exostome, and small spores.

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 barclayi"
awned +  and apiculate +
Dale H. Vitt +
Mitten +
erect +  and ascending +
short-conic +
oblong-cylindric;oblong-ovate +
constricted +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
differentiated +
hexagonal-rounded;elliptic +
B.C. +  and Alaska. +
low elevations +
linear-lanceolate +
reflexed +, recurved +  and erect +
striate +  and papillose +
rectangular;elliptic +
connate +
occasional +
Tree trunks and branches +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
narrowly lanceolate +  and oblong-lanceolate +
spreading-flexuose +, flexuose +  and straight +
erect-spreading +
not rugose +
linear-lanceolate +, oblong-lanceolate +, lanceolate +, crisped +  and not crisped +
dioicous +, autoicous +  and sexual +
entire +  and 8-ribbed +
puckered +
constricted +
rostrate;convex;conic +
mammillose +  and smooth +
autoicous +, sexual +  and asexual +
clavate +, 2-fid +  and conic +
lateral +  and terminal +
J. Linn. Soc., Bot. +
sinistrorse +, dextrorse +  and erect +
tapering +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
hairy +, smooth +  and papillose-striate +
papillose +
superficial +
Ulota barclayi +
species +
specialized +
cladautoicous +, pseudautoicous +, dioicous +  and sexual +
incrassate +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
olive brown;reddish-brown;olive brown;reddish-brown;dark green +
small +  and medium-sized +