Campylopus tallulensis Sull. & Lesq. ex Sull., Icon. Musc. 27. 1864. Type. U.S.A., Georgia, Tallulah Falls, Lesquereux (MO, NY, US).

Campylopus roellii Ren. & Card., Bull. Soc. Roy. Bot. Belgique 38(1): 9. 1900. Type. Costa Rica, Juan Vinas, Sarg (US).

Plants medium sized, sordid green to yellow-green, growing in dense tufts; stems moderately to densely tomentose, to 3 cm long. Leaves erect to erect-spreading, moderately flexuous above, tubulose, ovate-lanceolate to lanceolate, broadly acuminate, the lamina distinct to the acute apex, 4–5 mm long, margins entire below, more or less toothed at the extreme apex; costa percurrent to shortly excurrent, 1/3–1/2 the leaf base, smooth to lightly ribbed at back, in cross section with ventral hyalocysts larger than the guide cells (at times only moderately larger), guide cells well-developed, stereid band well-developed, in the lower 1/3 of leaf the stereid band not as wide as the costa, the margins of the costa consisting of 2–3 layers of enlarged cells; upper cells shortly rectangular to quadrate, firm-walled; upper basal cells quadrate to rectangular, chlorophyllose, firm-walled; lower basal cells hyaline, short-rectangular, those nearest the costa largest, marginal cells thinner, and forming a narrow, hyaline border which extends upwards a short distance as a V-shaped border; alar cells poorly developed, frequently fugacious. Setae 8 mm long, red, twisted and erect when dry, strongly cygneous when wet; capsules 1.0–1.5 mm long, erect and striate when dry; opercula rostrate, 1.0 mm long. Calyptrae 2.0–2.5 mm long, cucullate, fringed at base.