Hyophila involuta

(Hooker) A. Jaeger

Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1871/1872: 354. 1873,.

Basionym: Gymnostomum involutum Hooker Musci Exot. 2: plate 154. 1819
Synonyms: Hyophila tortula (Schwägrichen) Hampe
Treatment appears in FNA Volume 27. Treatment on page 585. Mentioned on page 386, 489, 582.

Plants in loose or dense, dark green to redbrown or blackish tufts, dull or occasionally with a metallic sheen. Stem densely foliate, 5–10 (–20) mm, central strand strong. Leaves concave when moist, to 1.5–2 (–2.5) mm, oblong-spatulate to obovate, occasionally with multicellular teeth in distal 1/4, rounded to rounded-obtuse at the apex, sometimes apiculate; costa stout, prominent abaxially, smooth on the abaxial surface to occasionally roughened at the apex, hydroids absent; laminal cells near insertion shortrectangular, 2–4: 1, firm-walled, pale and brownish or hyaline, cells 8–10 (–12) µm wide, in longitudinal and oblique rows, thin to thick-walled, bulging-mammillose on the adaxial surface, plane on the abaxial. Sexual condition dioicous. Seta 6–7 mm, reddish to yellowbrown with age. Capsule erect, 1.5–3 mm, narrowly cylindric from an indistinct neck, annulus well differentiated, redbrown, of vesiculose cells, persistent or deciduous; [operculum erect, conic-rostrate, 0.6–0.8 mm].


Habitat: Loosely consolidated sedimentary rocks, soft limestone, rocky riverbanks, streamsides and bluffs in shaded woods
Elevation: low to moderate elevations (0-1100 m)

Distribution

V27 839-distribution-map.gif

Ont., Ala., Ariz., Ark., Conn., Fla., Ga., Ind., Kans., Ky., Md., Mich., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico, West Indies, Central America, South America, Europe, s Asia, s Africa, Pacific Islands, Australia

Discussion

Cells covering the adaxial costal surface in the related genus Plaubelia are rounded and similar to the laminal cells, being small and generally isodiametric; those of Hyophila are rather different from the laminal cells, being somewhat larger and quadrate to short-rectangular. The adaxial costal cells of Plaubelia are more saliently mammillose than those of Hyophila, but this is not always easy to establish. In the flora the range of Plaubelia is restricted to Florida, whereas that of Hyophila involuta extends from Florida north to Ontario. For distinction of Hyophila from Dichodontium pellucidum, see discussion of the latter species. Hyophila involuta apparently rarely fruits in the flora area (one old sporophyte was seen from Ohio; one fruiting specimen from New Jersey was noted by A. J. Grout 1928–1940).

Selected References

None.

Lower Taxa

None.
... more about "Hyophila involuta"
elongate +  and quadrate +
deciduous +  and persistent +
differentiated +
long-excurrent +  and short-excurrent +
Patricia M. Eckel +
(Hooker) A. Jaeger +
dentate-elliptic +  and stellate +
reniform +  and rounded +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
Gymnostomum involutum +
obovoid +
cucullate +
cleistocarpous +  and stegocarpous +
cylindric +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
monoicous +, dioicous +  and sexual +
flat to bulging +
vesiculose +  and thick-walled +
Few (?) +  and Several (?) +
bulging-mammillose +
dioicous +  and sexual +
elongate-rhomboid +  and elongate +
8um +  and 10um +
tomentose +  and bare +
subpercurrent +
roundedquadrate +  and hexagonal +
concave +  and channeled +
Ont. +, Ala. +, Ariz. +, Ark. +, Conn. +, Fla. +, Ga. +, Ind. +, Kans. +, Ky. +, Md. +, Mich. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +, Mexico +, West Indies +, Central America +, South America +, Europe +, s Asia +, s Africa +, Pacific Islands +  and Australia +
low to moderate elevations (0-1100 m) +
differentiated +
multicellular +
Loosely consolidated sedimentary rocks, soft limestone, rocky riverbanks, streamsides and bluffs in shaded woods +
yellow +  and orange-red or red +
pale and brownish or hyaline +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
ligulate +  and tubulose-twisted +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
rounded +  and rounded-obtuse +
constricted +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
dentate +  and entire +
recurved +  and incurved +
denticulate +  and dentate +
indistinct +
conic;long-conic or rostrate +
photosynthetic +
compound +, simple +, hollow +  and solid +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
perichaetiate +
Ber. Thätigk. St. Gallischen Naturwiss. Ges. +
straight +
reddish;yellowbrown +
elongate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 +  and 1 +
densely-branched +
rounded-triangular +  and rounded-pentagonal +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Hyophila tortula +
Hyophila involuta +
Hyophila +
species +
ovoid;cylindric +
multicellular +
dark green;redbrown or blackish +
red +  and yellow +
specialized +
monoicous +, dioicous +  and sexual +
stemless +  and perigoniate +
red;reddish-brown or dark green +
occasionally +  and dull +
occasionally smaller than the perichaetiate +