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 when dry, lanceolate, 2–3.2(–3.5) mm;

margins recurved on one side in proximal 2/3, plane or slightly recurved in proximal 1/4 on other side, entire or papillose-crenulate;

apex acute;

basal laminal cells rectangular to almost quadrate, walls thin, usually not nodose;

distal cells (7–)11–14(–16) µm, 1-stratose, papillae 2–4 per cell, simple to 2-fid, large.

to 1.8 mm.

0.4–0.6 mm.

gonioautoicous.

gonioautoicous or cladautoicous.

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.

2/3 emergent to short-exserted, cylindric, 2–2.3 mm, narrowly 8-ribbed entire length, constricted below mouth when dry;

stomata immersed;

peristome double;

prostome present, rudimentary;

exostome teeth 16, erect when mature, reflexed when old, irregularly papillose-striate;

endostome segments 16, well developed, of 1 row of cells, filiform, papillose.

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

conic-oblong, smooth, sparsely hairy, hairs smooth.

13–21 µm.

16–18(–19) µm.

asexual reproduction absent.

asexual reproduction absent.