Entodon brevisetus
Contr. Fl. Crypt. As., 253. 1873.
Plants in thin mats, yellow-green. Stems to 5 cm, subpinnate, branches terete-foliate. Leaves erect to spreading, oblong-lanceolate, slightly plicate, 1.2–2 mm; margins plane, subentire proximally, ± serrulate distally; apex slender acuminate; ecostate or costa double, short; alar region ± abruptly differentiated, 1-stratose, not reaching costa. Sexual condition autoicous. Seta yellow, 0.5–1.5 cm. Capsule cylindric, to 1.4–2 mm; annulus 3-seriate or 4-seriate, persistent; operculum bluntly short-rostrate; exostome teeth reddish, external surface densely papillose throughout, not perforate; endostome segments densely papillose. Spores 16–21 µm.
Habitat: Bark at base of hardwood trees, logs, stumps, rock
Elevation: low to moderate elevations
Distribution
![V28 784-distribution-map.gif](/w/images/4/46/V28_784-distribution-map.gif)
N.B., Nfld. and Labr. (Nfld.), Ga., Ill., Ind., Maine, Mass., N.J., N.Y., N.C., Ohio, Pa., Va., W.Va., Wis.
Discussion
Entodon brevisetus is an uncommon but widely dispersed species recognizable by its terete-foliate plants with slenderly acuminate leaves. The setae are yellow and the exostome teeth are densely papillose throughout. The endostome is sometimes adherent to the exostome teeth.
Selected References
None.