Dicranoweisia spp.
Family: Dicranaceae
Project: Southwest Biodiversity Consortium
Plants densely tufted, light to dark green, dull. Stems 0.5-3 cm, erect, forked, with central strand, with rhizoids confined to base of stems and firmly affixed to substratum. Leaves lanceolate, flexuose, crisped or curled when dry, 1-3.5 mm; costa single, subpercurrent, narrow; margins plane to incurved or recurved, 1- or 2-stratose; proximal cells elongate, 15-30 µm, smooth; alar cells with a few enlarged cells on margins, often colored or undifferentiated; distal cells subquadrate 7-10 µm wide, smooth or with longitudinal cuticular ridges. Specialized asexual reproduction sometimes present, multicellular, on abaxial surface, elliptic to short-linear, of 4-10 cells, 1-seriate or with occasional 2-seriate portions, smooth. Sexual condition autoicous; pergonial leaves abruptly narrowed to a long or short subula; perichaetial leaves variable, resembling vegetative leaves or broadly obtuse to acute or short-acuminate. Seta solitary, yellowish, 3-15 mm, smooth. Capsule light to dark brown when mature, elliptic to short-cylindric, 0.5-2 mm, smooth to longitudinally wrinkled when dry; annulus present, of 1-3 rows of cells, deciduous or absent; operculum rostrate, beak straight or oblique; peristome single, 16 teeth inserted below darkened cells of mouth, teeth entire to divided at apices, red-brown with hyaline tips. Calyptra cucullate, smooth, covering 1/3-1/2 of capsule, entire at base. Spores spherical, 15-20 µm, weakly papillose. Species of Dicranoweisia are usually epiphytic, epixylic, epilithic, or terrestrial and are found widespread throughout the world.

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Dicranoweisia dot map
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