Octoblepharum albidum

Hedwig

Sp. Musc. Frond., 50. 1801,.

Treatment appears in FNA Volume 27. Treatment on page 664. Mentioned on page 21.

Plants glossy, glaucous-green to white, often with pink tinge; densely cespitose; axillary hairs 3 per axil, 5-celled. Leaves spreading-recurved, fleshy, fragile when dry, 4–5 mm, apiculate, older leaves sometimes with rhizoids on tips. Specialized asexual reproduction rare, by gemmae. Seta yellow, 2–5 mm. Capsule brownish, 1–1.5 mm, ovoid-cylindric, slightly asymmetric, with stomata at base; operculum 0.8 mm; peristome of 8 blunt triangular pairs of teeth, teeth smooth or faintly striate, 200 µm tall, each composed of one interior and one exterior layer of intact, empty, cell-like plates; prostome present. Calyptra 1.5–1.9 mm. Spores finely papillose, 17–24 µm.


Phenology: Capsules mature throughout the year but most common Sep–Apr.
Habitat: Hammocks and open forests, primarily on stems and bases of Quercus virginiana and Sabal palmetto, and rotted logs, occasionally terrestrial on soil and humus
Elevation: low elevations (0-30 m)

Discussion

Octoblepharum albidum is a weedy and conspicuous moss that is distributed worldwide in the tropics. It grows especially on palms, often forming deep soft cushions. The flat, glossy, ligulate, spreading-recurved leaves distinguish it easily in the field from the superficially similar Leucobryum, which has erect or spreading, pointed, subtubulose leaves.

Selected References

None.

Lower Taxa

None.
... more about "Octoblepharum albidum"
William D. Reese† +
Hedwig +
cucullate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
ovoid-cylindric +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
empty +  and porose +
elongate +
specialized +
autoicous +  and sexual +
Fla. +, La. +, Tex. +  and pantropical +
low elevations (0-30 m) +
Hammocks and open forests, primarily on stems and bases of Quercus virginiana and Sabal palmetto, and rotted logs, occasionally terrestrial on soil and humus +
specialized +
spreading-recurved +
lanceolate +
small +  and reduced +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
differentiated +
0.8 cm8 mm <br />0.008 m <br /> (?) +
triangular +  and blunt +
linear;triangular +
Capsules mature throughout the year but most common Sep–Apr. +
cell-like +  and empty +
Sp. Musc. Frond., +
inconspicuous +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Octoblepharum albidum +
Octoblepharum +
species +
multicellular +
200 cm2,000 mm <br />2 m <br /> (?) +
striate +  and smooth +
All (?) +  and Single (?) +
decorated +  and smooth +
thickened +  and thin +
glaucous-green +  and white +
plant +  and cespitose +