Plants 2-20 mm, perennial, sometimes gregarious but mostly in dense short turfs, green to yellow-green. Stems variable, simple, with few innovations, or often short and multi-branched by numerous innovations from axils of stem leaves or exterior perichaetial leaves, often becoming prostrate with age, innovations fragile and often detached. Stem leaves erect to erect-spreading, lanceolate, triangular or ovate-lanceolate, narrowly acuminate to subulate, 0.5-2 mm, becoming reduced proximally; costa percurrent to distinctly excurrent in hairpoint; laminal margins plane, smooth or finely serrulate distally; median laminal cells rhomboidal to prosenchymatous, 4-8:1, 45-90 × 9-15 µm, somewhat shorter distally and along margin, proximal cells short-rectangular to rectangular, 2-4:1, 25-60 × 12-16 µm, short-rectangular to quadrate in alar region in 2-6 rows extending 6-15 cells along proximal lamina margin; leaves of innovations similar to distal stem leaves except smaller, often sharply reduced proximally. Perichaetial leaves variable in shape, ovate, oblong, ovate-lanceolate to lanceolate, larger, 1-2 mm, short-to long-acuminate; costa percurrent to long-excurrent, often forming pellucid hairpoint; laminal margins smooth, plane or rarely weakly recurved; median laminal cells rhomboidal, linear-rhomboidal to prosenchymatous, 4-8:1, 45-140 × 9-15 µm, shorter distally and along margin, proximal cells hyaline, lax, rectangular to rhomboidal, 4-6:1, 50-90 × 12-18 µm. Specialized asexual reproduction absent. Sexual condition autoicous, antheridia terminating axillary leaf buds. Capsule lateral, or both lateral and terminal, 270-600 µm. Spores typically 16(4-60) per capsule, rounded-triangular to polyhedral, 110-320 µm, pale yellow, smooth to papillose.
More
Plants forming loose turfs, yellow-green; terricolous. Stems erect or subflexuose, 2-15 mm high, simple or branching; in section with central strand, cortical cells large, thin-walled, outer 1-2 rows smaller. Leaves bract-like below, erect-spreading or wide-spreading above, ovate-lanceolate to ovate or occasionally narrowly lanceolate, short-acuminate to subulate, 0.9-1.5 mm long; base often clasping; margins plane, entire or serrulate above. Costa percurrent to excurrent as hair-point; in section cells undifferentiated. Laminal cells rhomboidal to fusiform, basal cells rectangular to quadrate. Perichaetia terminal or lateral. Leaves erect, ovate, oblong-ovate, ovate-lanceolate or lanceolate, acuminate, 0.7-1.8 mm long; margins plane to recurved; entire to serrulate above. Costa percurrent to excurrent as hair-point; in section round, cells undifferentiated, incrassate. Laminal cells rhomboidal to fusiform, frequently lax, 37-95 µm long, walls (1.7-)2.8(-4.4) µm wide, lumen (7-)12-15 µm wide; basal cells rhomboidal to rectangular, lax, hyaline below. Spores 8-60 per capsule, rounded triangular to polyhedral, 97-176 µm, smooth to granulose, yellow.
Plants forming loose turfs, yellow-green. Stems 2-15 mm long. Perichaetial leaves erect; ovate, oblong-ovate or lanceolate, 0.7-1.8 mm long; margins entire to serrulate above; costa percurrent to excurrent as hair-point. Laminal cells rhomboidal to fusiform, 37-95 jm long; basal cells rhomboidal to rectangular. Spores 8-60 per capsule, smooth to granulose, yellow.
Home
