Flora of North America species comparison

erect, simple or branching, with a central strand.

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

costa percurrent or ending before the apex.

mostly lanceolate or subulate, straight or somewhat curved, base oblong to ovate; in several rows;

margins plane, entire or serrulate distally;

costa single, well developed, subpercurrent to shortly excurrent as a sometimes roughened or denticulate subula, in section poorly differentiated or with 1 row of guide cells and 2 (sub-)stereid bands, adaxial band much reduced;

lamina cells smooth or abaxially papillose;

basal cells broader, narrower towards the margins, those of basal angles not differentiated or forming a marginal border;

distal cells short- to long-rectangular, walls firm.

long, 10–30 mm.

short to elongate, usually yellow or brown;

capsules immersed to exerted, cylindric or obovate with a distinct inflated-tapering to elongate neck, erect to curved; cleistocarpous, gymnostomous, or peristomate;

annulus, when present, usually of 2–3 rows of larger cells, commonly revoluble;

peristome, when present, single, of 16 simple, forked, or perforate teeth;

operculum,when present, obliquely long-rostrate.

autoicous or paroicous [dioicous];

perigonia axillary or on short branches adjacent to perichaetia or basal on the plant;

perichaetial leaves usually differentiated, longer and somewhat sheathing.

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.

cucullate or mitrate.

often large, spheric to ovoid or weakly reniform, finely to coarsely papillose, spiculate, reticulate, or pitted.

asexual reproduction not known.