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 stiff, erect-appressed or slightly flexuose when dry, lanceolate, 1.8–2.4 mm;

margins recurved to just below apex, entire;

apex acute;

basal laminal cells rectangular, walls thin, not nodose;

distal cells 8–12 µm, 1-stratose, smooth or papillae 1–3 per cell, conic, low.

to 1.8 mm.

0.7–1.5 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.

emergent, elliptic-cylindric and strangulate, 0.8–1.5 mm, strongly 8-ribbed, ribs thick, broad when dry, constricted below mouth when dry;

stomata immersed, 1/2 to completely covered by subsidiary cells, cells projecting, inner walls thickened;

peristome double;

prostome absent;

exostome teeth 8, reflexed to revolute when old and dry, finely and evenly papillose;

endostome segments 8 or 16, well developed, of 1 or 2 rows of cells, exterior surface smooth or finely striate.

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

oblong, smooth, rarely naked or hairs few, hairs variably smooth or papillose by projecting walls.

13–21 µm.

10–15 µm.

asexual reproduction absent.

asexual reproduction by gemmae on abaxial surface of leaves.

with hairs present.