Flora of North America species comparison

leaves stiff, erect-appressed when dry, narrowly lanceolate to ovate-lanceolate, 2–4.5 mm;

margins recurved to narrowly revolute to near apex, entire;

apex sharply to slenderly acute;

basal laminal cells elongate to rectangular, walls thick, ± nodose;

distal cells 6–13 µm, 1-stratose, papillae 1 or 2 per cell, conic and small, or 2-fid and low.

leaves erect, crisped-flexuose when dry, linear-lanceolate, 2–3.2 mm;

margins recurved to near apex, sometimes reflexed beyond, entire;

apex acuminate (sometimes bluntly so) or acute;

basal laminal cells linear-elongate to long-rectangular, walls thick, not nodose;

distal cells 7–11 µm, 1-stratose, smooth or papillae 1 or 2 per cell, blunt, low.

to 1.8 mm.

(1.5–)2.5–6 mm.

gonioautoicous.

gonioautoicous.

immersed, emergent, or slightly exserted, usually 1/3 emergent, globose ovate, ovate-oblong, or short-oblong, 1.3–1.8 mm, slightly or distinctly 8-ribbed 1/2–2/3 length;

stomata superficial;

peristome single, rarely double;

prostome large, conspicuous, or rudimentary;

exostome teeth 16, erect or sometimes spreading-recurved when old, smooth, scattered-papillose, or coarsely papillose-granulate;

endostome segments absent, or rarely 8, rudimentary, of 1 row of cells, smooth or roughened.

exserted to long-exserted, ovate-oblong when young, elliptic-cylindric when old, 2.5–6 mm, 8-ribbed entire length;

stomata immersed, in neck to mid capsule;

peristome double;

prostome absent;

exostome teeth 8, erect when mature, reflexed when old, external surface very finely and densely papillose, internal surface finely striate;

endostome segments usually 16, rarely 8 (sometimes 8 long, 8 short), not well developed, of 1 row of cells, smooth or finely roughened.

oblong, smooth, hairy or rarely naked, hairs finely papillose.

oblong-conic to short-conic, smooth, naked or rarely sparsely hairy, hairs not papillose.

13–21 µm.

12–14 µm.

asexual reproduction absent.

asexual reproduction absent.