Flora of North America species comparison

ovate-lanceolate to long-subulate from an ovate or obovate base, serrulate at apex;

costa percurrent or ending before the apex.

usually contorted when dry, lanceolate to broadly subulate from an ovate or oblong sheathing base, 1.5–4 mm, apex acute to narrowly obtuse, margins entire or with a few teeth apically;

costa subpercurrect to excurrent as a subula;

distal laminal cells subquadrate or short-rectangular.

long, 10–30 mm.

elongate, 0.5–1.5 cm.

inclined, curved;

neck 2–3 times as long as urn when dry, long-cylindric, strumose at base;

peristome teeth 2-fid or irregularly perforate, not fragile, commonly persistent;

annulus compound, revoluble.

long-exserted, cylindric with neck strongly differentiated, conic to long-cylindric;

peristome absent or present, of 16 simple, forked or perforate teeth, vertically barred on external surface;

operculum differentiated, obliquely long-rostrate.

cucullate.

medium-sized, 20–30 µm, papillose.

leaves distinctly larger than the cauline, convolute-sheathing.