Oncophorus rauei

(Austin) Grout

Moss Fl. N. Amer. 1: 71. 1937,.

Basionym: Syrrhopodon rauei Austin Bull. Torrey Bot. Club 6: 74. 1876
Treatment appears in FNA Volume 27. Treatment on page 424. Mentioned on page 423, 431.

Plants in loose tufts or extensive mats, dark green to dark yellowbrown. Stems 1.5–3 cm. Branch leaves flexuose-spreading moist or dry, ovatelanceolate, abruptly subulate from ovate base, finely serrate, 2.5–5 mm, subtubulose above, sheathing at base, margins plane; costa stout, mostly percurrent; laminal cells 2-stratose; distal laminal cells mostly subquadrate; basal laminal cells elongate, rectangular, incrassate, alar slightly differentiated. Seta 5–8 mm. Capsule yellowbrown, nearly smooth at maturity, 1–1.5 mm. Spores 16–19 µm.


Phenology: Capsules mature summer.
Habitat: Moist acidic rocks or cliffs near streams or waterfalls

Distribution

V27 603-distribution-map.gif

Ga., N.C., Pa., S.C., Tenn., W.Va.

Discussion

Oncophorus rauei, a rare species, has a south temperate distribution and is distinguished by its dark color and rocky habitat. Although O. virens is also saxicolous, that species is distinguished by its folded leaves, which have revolute margins, and are gradually subulate, wihtout a sheathing base. Onchophorus wahlenbergii is an epixylic species with leaves strongly contorted when dry, the lamina is only 2-stratose at the margins, and the seta is usually longer.

Selected References

None.

Lower Taxa

None.
... more about "Oncophorus rauei"
persistent +  and deciduous +
Steven G. Newmaster +
(Austin) Grout +
short to long +
Syrrhopodon rauei +
microphyllous +
sheathing +  and serrate +
subulate +  and ovatelanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
dry +, moist +  and flexuose-spreading +
pseudomonoicous +, dioicous +, autoicous +  and sexual +
reproduction +  and asexual +
cucullate +
inclined +  and horizontal +
cylindric +
papillose +  and mammillose +
autoicous +  and sexual +
enlarged +
differentiated +
Ga. +, N.C. +, Pa. +, S.C. +, Tenn. +  and W.Va. +
Moist acidic rocks or cliffs near streams or waterfalls +
falcate-secund +
curled +, crisped +, gradually narrowed +  and abruptly subulate +
extensive +
nonpitted +  and pitted +
toothed +  and forked +
red +  and pitted-striolate +
Capsules mature summer. +
undifferentiated +
Moss Fl. N. Amer. +
2 cm20 mm <br />0.02 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
yellow;reddish yellow +
flexuose +  and straight +
cygneous +  and elongate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
yellow +  and yellow-green +
spheric +
branching;simple +
erect-spreading +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
superficial +
Oncophorus rauei +
Oncophorus +
species +
deciduous +
divided +
smooth +  and furrowed +
strumose +
constricted +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
dark green +  and dark yellowbrown +
dull +  and glossy to somewhat +