Flora of North America species comparison

creeping, branches ascending.

with basal laminal cells bulging, papillose-mammillose.

closely erect-appressed, not contorted when dry, erect-spreading when moist, lanceolate to ovate-lanceolate, not rugose;

margins entire;

apex acute to narrowly obtuse [bluntly acuminate];

costa percurrent;

basal laminal cells rounded to elliptic;

distal cells rounded-quadrate, 7–12 µm, in vertical rows, smooth [papillose only over lumina];

marginal cells not distinct from basal.

dextrorse, smooth.

4–6.5 mm.

gonioautoicous;

perichaetial leaves longer than branch leaves.

1.3–2 mm;

exothecial cells not or slightly differentiated;

peristome consisting of low papillose membrane.

exserted, oblong-cylindric to fusiform, ± plicate distally or not, not constricted below mouth;

stomata superficial;

peristome single, of exostome or endostome;

exostome teeth 16 blunt, short, papillose;

or endostome basal membrane low, papillose.

often splitting by one cleft along one rib.

mitrate, long elliptic-conic, basal lobes many, smooth, ± hairy, obscurely plicate, covering capsule.

isosporous, unicellular.