Flora of North America species comparison

leaves erect-appressed and straight when dry, ligulate, elongate- to ovate-lanceolate, 2–4 mm;

margins recurved-revolute to just below apex, entire;

apex acute;

basal laminal cells long-rectangular to elongate, walls thick, nodose;

distal cells 9–13 µm, 1-stratose, papillae 2 or 3 per cell, 2-fid, low.

leaves stiff, erect-appressed when dry, lanceolate, 2.7–3.6 mm;

margins broadly recurved, plane at apex, entire;

apex short-acuminate to acute;

basal laminal cells elongate, walls thick, nodose;

distal cells 9–15 µm, 1-stratose, papillae 2–4 per cell, simple or 2-fid, large.

1–2.2 mm.

to 0.4 mm.

gonioautoicous.

gonioautoicous.

1/2 emergent to short-exserted, long-cylindric when mature, cylindric and constricted along entire length when old and dry, 1.6–2.5 mm, strongly 8-ribbed 2/3 capsule length;

stomata superficial;

peristome double;

prostome absent;

exostome teeth 8, erect when mature, reflexed to reflexed-recurved when old, coarsely and obscurely papillose or sometimes papillose-reticulate, deeply perforate, cancellate;

endostome segments 8, rarely 16, well developed, usually present when capsule is old and dry, narrow, of 2 rows of cells, papillose.

immersed to emergent, ovate to cylindric-ovate, 1.6–1.8 mm, usually smooth or slightly 8-ribbed when dry;

stomata superficial;

peristome usually single;

prostome small or absent;

exostome teeth 16, recurved, coarsely papillose to papillose-striate;

endostome rarely present, segments 8, rudimentary, of 1 row of cells, smooth.

conic-oblong, smooth, hairs few, papillose.

oblong-conic, smooth, hairy, hairs papillose.

15–18 µm.

14–17(–20) µm.

asexual reproduction absent.

asexual reproduction absent.