Plants 2-20 mm, perennial, gregarious or in dense short turfs, green or yellow-green. Stems simple to branched by several sterile innovations to 15 mm, becoming prostrate with age. Stem leaves erect to erect-spreading, ovate-lanceolate to lanceolate or triangular, acuminate to subulate, 0.5-2.5 mm; costa strong, percurrent to short-excurrent, sometimes long-excurrent in long subulate tip; laminal margins plane, smooth or finely serrulate distally; median laminal cells rhomboidal to linear-rhomboidal, 5-15:1, 45-160 × 8-14 µm, becoming somewhat shorter distally, proximal cells rectangular, 3-8:1, 45-90 × 9-18 µm, cells in alar region short-rectangular to quadrate, 1-2:1, in 2-3 rows extending from 3-10 cells distally from base along margin; leaves of innovations similar to stem leaves but smaller, gradually reduced proximally. Perichaetial leaves erect, concave, sometimes flexuose, ovate-lanceolate, acuminate to strongly subulate, laminal cells similar to stem leaves except proximal and alar cells long-rectangular, 6-10:1, 90-140 × 14-20 µm, distinctly hyaline, at least in alar region. Specialized asexual reproduction occasional, of filiform uniseriate rhizoidal tubers. Sexual condition paroicous; antheridia typically naked or occasionally 1-2 small bracts present. Capsule terminal, sometimes appearing lateral due to rapid innovation growth, 300-800 µm. Spores typically 16 (8-36) per capsule, rounded to polyhedral, 120-260 µm, smooth or finely papillose, pale yellow to golden. Plants yellow to yellow-green, in dense tufts 3-20 mm high. Stems simple, later forming sterile and fertile innovations subtending the sporophyte. Upper stem leaves clasping, ovate-lanceolate to narrowly triangular-lanceolate, acuminate to ± subulate, channeled; margins plane, entire to faintly serrulate; costa percurrent to short-excurrent; median cells rhomboidal to linear-rhomboidal, becoming shorter above; basal cells rectangular with 2-3 rows at margins quadrate to short-rectangular. Perichaetial leaves erect, concave, broadly ovate-lanceolate, short-acuminate to narrowly lanceolate, long-acuminate to subulate, 1.2-3 mm long; margins plane, entire to faintly serrulate; costa percurrent to short-excurrent; median cells rhomboidal to prosenchymatous, 50-140 x 9-14 µm; basal cells rectangular, thin-walled, hyaline. Paroicous. Antheridia naked or rarely enclosed by 1-2 bracts in axils of perichaetial leaves. Capsules terminal, 1-2 per stem, 0.4-0.8 mm broad. Spores 8-36 per capsule, 125-260 µm, irregularly polyhedral, smooth to faintly papillose. On moist, bare, sandy soil; Mexico (Sierra de Alcaparrosa, Tepotzotlan, Cardenas 4522, MEXU); recorded by Delgadillo (1992b), without locality, from Michoacan. -Mexico; Rorida and Louisiana north to Missouri, Ohio, and North Carolina; western and central Europe, Algeria, Morocco, the Canary Islands and the Azores. Plants 2-20 mm, perennial, gregarious or in dense short turfs, green or yellow-green. Stems simple to branched by several sterile innovations to 15 mm, becoming prostrate with age. Stem leaves erect to erect-spreading, ovate-lanceolate to lanceolate or triangular, acuminate to subulate, 0.5-2.5 mm; costa strong, percurrent to short-excurrent, sometimes long-excurrent in long subulate tip; laminal margins plane, smooth or finely serrulate distally; median laminal cells rhomboidal to linear-rhomboidal, 5-15:1, 45-160 × 8-14 µm, becoming somewhat shorter distally, proximal cells rectangular, 3-8:1, 45-90 × 9-18 µm, cells in alar region short-rectangular to quadrate, 1-2:1, in 2-3 rows extending from 3-10 cells distally from base along margin; leaves of innovations similar to stem leaves but smaller, gradually reduced proximally. Perichaetial leaves erect, concave, sometimes flexuose, ovate-lanceolate, acuminate to strongly subulate, laminal cells similar to stem leaves except proximal and alar cells long-rectangular, 6-10:1, 90-140 × 14-20 µm, distinctly hyaline, at least in alar region. Specialized asexual reproduction occasional, of filiform uniseriate rhizoidal tubers. Sexual condition paroicous; antheridia typically naked or occasionally 1-2 small bracts present. Capsule terminal, sometimes appearing lateral due to rapid innovation growth, 300-800 µm. Spores typically 16 (8-36) per capsule, rounded to polyhedral, 120-260 µm, smooth or finely papillose, pale yellow to golden. On moist, bare, sandy soil; Mexico (Sierra de Alcaparrosa, Tepotzotlan, Cardenas 4522, MEXU); recorded by Delgadillo (1992b), without locality, from Michoacan. -Mexico; Rorida and Louisiana north to Missouri, Ohio, and North Carolina; western and central Europe, Algeria, Morocco, the Canary Islands and the Azores. Plants yellow to yellow-green, in dense tufts 3-20 mm high. Stems simple, later forming sterile and fertile innovations subtending the sporophyte. Upper stem leaves clasping, ovate-lanceolate to narrowly triangular-lanceolate, acuminate to ± subulate, channeled; margins plane, entire to faintly serrulate; costa percurrent to short-excurrent; median cells rhomboidal to linear-rhomboidal, becoming shorter above; basal cells rectangular with 2-3 rows at margins quadrate to short-rectangular. Perichaetial leaves erect, concave, broadly ovate-lanceolate, short-acuminate to narrowly lanceolate, long-acuminate to subulate, 1.2-3 mm long; margins plane, entire to faintly serrulate; costa percurrent to short-excurrent; median cells rhomboidal to prosenchymatous, 50-140 x 9-14 µm; basal cells rectangular, thin-walled, hyaline. Paroicous. Antheridia naked or rarely enclosed by 1-2 bracts in axils of perichaetial leaves. Capsules terminal, 1-2 per stem, 0.4-0.8 mm broad. Spores 8-36 per capsule, 125-260 µm, irregularly polyhedral, smooth to faintly papillose.General Information
Source: [
Source: [
Distribution
Source: [
Flora of North America @ efloras.org
General InformationMemoirs of the New York Botanical Garden
Distribution
