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.

larger distally and reduced proximally, distal leaves 2–3 mm, erect spreading, the blade elliptic to oblong-lanceolate or obovate gradually narrowed to a slender acumen, distal blade margins entire to weakly serrulate distally and entire proximally;

costa narrowing distally and ending in the acumen;

distal laminal cells thin-walled, rhomboid to oblong-hexagonal, somewhat narrowed at the margins, proximal cells becoming rectangular toward the base.

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

6–10 mm, nearly straight.

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, asymmetric, elongate-pyriform from a neck nearly as long as the spore sac, shrunken below the mouth but not plicate when dry;

annulus none, operculum short-conic;

peristome teeth lanceolate-triangular, dark yellow-brown, papillose-striate throughout, trabeculae distinct but moderately thickened, weakly appendiculate and extending into the tip;

endostome segments about 3/4 the length of the teeth, triangular basally, narrowing midway to a slender tip, finely papillose.

cucullate, smooth.

cucullate, smooth.

mostly 12–21 µm, finely papillose.

25–30 µm, somewhat angled, finely rugose-verrucate.