Flora of North America species comparison

smaller proximally, distal leaves 2–4 mm, deeply concave, oblong-ovate to broadly obovate distally, acute to apiculate or short-acuminate, entire or weakly serrulate distally;

costa subpercurrent to short-excurrent;

distal laminal cells thin-walled and inflated, hexagonal or oblong-hexagonal becoming much more oblong proximally.

few and reduced proximally, distal leaves 1.7–2.3 mm, concave, the blade ovate to obovate, abruptly contracted to a flexuose, hyaline tipped awn, distal blade margins weakly crenulate to rounded serrate above, entire proximally;

costa strong, excurrent with the distal end hyaline;

distal laminal cells thin-walled, rhomboid to elongate-hexagonal, proximal cells short-rectangular to almost quadrate toward the margins becoming oblong-rectangular near the costa.

usually (12–)20–45(–80) mm, slender and flexuose, usually hygroscopic.

usually 3–6 mm, flaring into a slender neck, hygroscopic.

2–3.5 mm, pyriform, asymmetric, curved to straight, horizontal to pendent or merely inclined or nearly erect, becoming sulcate when dry below the strongly oblique mouth;

annulus revoluble, operculum slightly convex;

peristome brown, papillose-striate proximally and papillose distally, strongly trabeculate, becoming appendiculate distally, forming a lattice by fusion of the tips;

endostome segments lanceolate about 2/3 as long as the teeth, yellowish, finely papillose-striate.

1.5–2 mm, inclined to arcuate, asymmetric, obovoid, mouth oblique;

annulus none;

operculum conic-convex;

peristome inserted below the rim of the mouth;

exostome transparent and papillose, of low, truncate segments about 1/4 the length of the teeth, endostome teeth lanceolate, reddish with a hyaline tip, obliquely papillose-striate to the papillose hyaline tip, trabeculae weakly developed, appendiculae almost absent in the tip.

cucullate, smooth.

cucullate, smooth.

mostly 12–21 µm, finely papillose.

22–30 µm, nearly smooth to papillose.