Rauiella scita

(P. Beauvois) Reimers

Hedwigia 76: 287. 1937.

EndemicIllustrated
Basionym: Hypnum scitum P. Beauvois Prodr. Aethéogam., 69. 1805
Synonyms: Rauia scita (P. Beauvois) Austin Rauiella scita var. aestivalis (Austin) Wijk & Margadant Thuidium scitum T. scitum var. aestivale Austin
Treatment appears in FNA Volume 28. Treatment on page 379. Mentioned on page 377, 378.

Stems 4–6 cm, branches 2–3 mm; paraphyllia weakly branched. Stem-leaves erect-spreading when moist, broadly ovate to cordate-deltoid; margins loosely revolute proximally, plane distally; apex narrowly long-acuminate; laminal cells 5–6 µm, papillae 3–6. Branch leaves appressed when dry, erect-spreading when moist, 0.4 mm; apex acute; costa pellucid proximally; laminal cells 5–6 µm, papillae 4–6; apical cell truncate, multipapillose. Perichaetial leaves 1.5 mm. Seta 1–2 cm. Capsule with operculum obliquely short-rostrate; endostome segments narrowly perforate, cilia in groups of 2 or 3. Spores 10–13 µm, finely papillose.


Phenology: Capsules mature fall–early winter.
Habitat: Bark, base of hardwoods, mature forests
Elevation: moderate elevations

Distribution

V28 596-distribution-map.gif

N.B., N.S., Ont., Que., Conn., Del., D.C., Ind., Iowa, Ky., Maine, Md., Mass., Mich., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Vt., Va., W.Va., Wis.

Discussion

Rauiella scita is more likely to be confused with Leskea (Leskeaceae) than with any other Thuidiaceae. However, the abundant paraphyllia and multipapillose laminal cells distinguish R. scita. As in R. praelonga, the distal portion of the costa of the branch leaves is covered with laminal cells, but in R. scita the apical cell of the branch leaves is truncate and multipapillose, unlike the smooth, pointed apical cell in R. praelonga.

Selected References

None.

Lower Taxa

None.
... more about "Rauiella scita"
3-seriate +  and 2-seriate +
differentiated +
acute +  and long-acuminate +
William R. Buck +
(P. Beauvois) Reimers +
Hypnum scitum +
erect-spreading +
0.4 cm4 mm <br />0.004 m <br /> (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
roughened +  and smooth +
cucullate +
suberect;horizontal +
short-cylindric +
papillose +
differentiated +
nodulose +
subpercurrent +
N.B. +, N.S. +, Ont. +, Que. +, Conn. +, Del. +, D.C. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
moderate elevations +
shouldered +  and bordered +
Bark, base of hardwoods, mature forests +
autoicous +  and sexual +
crenulate-papillose +
short-rostrate +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Capsules mature fall–early winter. +
smooth;roughened +
elongate +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Endemic +  and Illustrated +
spheric +
erect-spreading +
broadly ovate +  and cordate-deltoid +
not stipitate +
ascending +  and creeping +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
differentiated +
Rauia scita +, Rauiella scita var. aestivalis +, Thuidium scitum +  and T. scitum var. aestivale +
Rauiella scita +
Rauiella +
species +
specialized +
dioicous +, autoicous +, sexual +  and asexual +
dark green;golden brown +