Taxithelium planum

(Bridel) Mitten

J. Linn. Soc., Bot. 12: 496. 1869.

Illustrated
Basionym: Hypnum planum Bridel Muscol. Recent., suppl. 2: 97. 1812
Treatment appears in FNA Volume 28. Treatment on page 582.

Plants in thin to dense mats. Stems with branches 0.2–2 cm. Leaves sometimes with lateral leaves spreading and dorsal and ventral leaves appressed, contracted, smaller; supra-alar cells few-to-many, subquadrate, in 1 or 2 rows, often 1 row extending up margin. Specialized asexual reproduction rare, by filamentous gemmae. Perigonia and perichaetia on stems or base of branches. Capsule with exostome teeth 16, subulate, striolate; endostome basal membrane medium to high, segments equal to and alternating with exostome teeth, cilia 1–3, appendiculate. Calyptra smooth. Spores spheric, 12–22 µm, smooth to finely papillose.


Phenology: Capsules mature late summer.
Habitat: Tree bark, exposed roots, rotten logs
Elevation: low elevations

Distribution

V28 913-distribution-map.gif

Fla., Mexico, West Indies, Central America, South America, Asia, Africa, Australia

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Taxithelium planum"
short-acuminate +
Wilfred B. Schofield† +
(Bridel) Mitten +
Hypnum planum +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
cucullate +
inclined +  and horizontal +
striolate +
specialized +
1 +, few +  and many +
autoicous +, dioicous +, synoicous +  and sexual +
subquadrate +
enlarged +
differentiated +
appendiculate +
1 (?) +  and 3 (?) +
Fla. +, Mexico +, West Indies +, Central America +, South America +, Asia +, Africa +  and Australia +
low elevations +
filamentous +
Tree bark, exposed roots, rotten logs +
papillose +  and smooth +
autoicous +  and sexual +
spreading +  and appressed +
ovate;ovatelanceolate +
entire or +  and weakly sharply toothed +
small;large +
long-rostrate +  and conic +
Capsules mature late summer. +
J. Linn. Soc., Bot. +
specialized +
light-brown +, red +  and reddish-brown +
elongate +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Illustrated +
spheric +
falcate-secund +
widespreading +  and erect-spreading +
tapering;lanceolate;broadly ovate +
complanate-foliate +
redbrown +  and reddish green +
arching +, erect +, sometimes +  and reclining +
1 cm10 mm <br />0.01 m <br /> (?) +  and 10 cm100 mm <br />0.1 m <br /> (?) +
Taxithelium planum +
Taxithelium +
species +