Thuidium delicatulum var. radicans

(Kindberg) H. A. Crum

Bryologist 68: 434. 1966.

Illustrated
Basionym: Thuidium recognitum var. radicans Kindberg Rev. Bryol. 19: 103. 1892
Synonyms: T. philibertii T. recognitum subsp. philibertii (Limpricht) Dixon
Treatment appears in FNA Volume 28. Treatment on page 383.

Stem-leaves (1–) 1.2 (–1.5) mm; apex ending in hyaline point of 2–8 1-seriate cells. Perichaetial leaves with margins usually not ciliate, sometimes sparsely so, rarely copiously ciliate.


Phenology: Capsules mature fall–winter.
Habitat: Calciphile, soil, humus, rock, logs in swampy places
Elevation: low to high elevations

Distribution

V28 603-distribution-map.gif

Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.S., Ont., Yukon, Alaska, Iowa, Maine, Mich., Minn., N.J., N.Mex., N.Y., S.C., S.Dak., Va., Wis., Mexico, South America (Peru), Europe, Asia

Discussion

Variety radicans intergrades with var. delicatulum. The annulus of var. radicans is of 2 or 3 rows of cells scarcely differentiated from suboral cells, and this character is sometimes of aid in distinguishing it from var. delicatulum.

Selected References

None.

Lower Taxa

None.
differentiated +
acute +  and acuminate +
Howard A. Crum† +
(Kindberg) H. A. Crum +
convex-conic +
Thuidium recognitum var. radicans +
0.3 cm3 mm <br />0.003 m <br /> (?) +
roughened +  and smooth +
cucullate +
inclined;horizontal +
curved-cylindric +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
papillose +
differentiated +
nodulose +
0 +  and 1/2 +
Alta. +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Yukon +, Alaska +, Iowa +, Maine +, Mich. +, Minn. +, N.J. +, N.Mex. +, N.Y. +, S.C. +, S.Dak. +, Va. +, Wis. +, Mexico +, South America (Peru) +, Europe +  and Asia +
low to high elevations +
shouldered +  and bordered +
Calciphile, soil, humus, rock, logs in swampy places +
papillose +  and 1-papillose +
dioicous +  and sexual +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (?) +
erect-spreading +  and erect +
triangular-ovate +
papillose-serrulate +
recurved +, erect +, incurved +  and reflexed +
denticulate +
long-rostrate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
filiform-branched +  and foliose +
ovatelanceolate +  and lanceolate +
Capsules mature fall–winter. +
papillose;smooth +
elongate +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Illustrated +
spheric +
3-pinnate +  and 2-pinnate +
creeping +  and arched-ascending +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
differentiated +
T. philibertii +  and T. recognitum subsp. philibertii +
Thuidium delicatulum var. radicans +
Thuidium delicatulum +
variety +
specialized +
dioicous +, autoicous +, sexual +  and asexual +
yellowish-brown;green +