Pilopogon
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Authority
Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part One: Sphagnales to Bryales. Mem. New York Bot. Gard. 69 (1): 1-452.
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Family
Dicranaceae
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Scientific Name
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Description
Genus Description - Plants tall and slender, in dense yellow-green to yellow-brown tufts. Stems forked, radiculose below. Leaves somewhat flexuose when moist, appressed with ± flexuose tips when dry, tubulose, gradually acuminate from an oblong base, acute; margins serrate to subentire at the apex; costa short-excurrent, filling 1/3-1/2 the leaf base, weakly ribbed at back, with 2 stereid bands; upper cells short-rectangular, sometimes irregular in shape, ± thick-walled, smooth; basal cells rectangular; alar cells not or ± differentiated, hyaline or reddish. Dioicous. Perichaetial leaves very long, broadly sheathing at base and abruptly narrowed to a long, slender subula, enclosing the seta from 1/4 to its entire length. Setae single, elongate, straight or slightly flexuose, smooth; capsules erect and symmetric or shghtiy curved, cylindric, smooth; annulus none; operculum short-rostrate; stomata none; peristome teeth undivided, densely papillose nearly to the base, papillose above. Spores spherical to ovoid. Calyptrae cucullate, fimbriate at base, smooth.
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Discussion
Distinguishing features of the genus, in many ways like Campylopus, include broadly costate leaves with two stereid bands, long-sheathing perichaetial leaves (sometimes reaching the base of the capsule), long, straight setae, smooth, oblong-cylindric capsules lacking stomata, and ciliate-fringed calyptrae.
The genus has been monographed by Frahm (1983).