Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules present;

central strand weak or absent.

branched;

axillary hyaline nodules absent;

central strand present.

as many as 25 pairs, narrowly lanceolate to ovate–lanceolate, acute to sharply acute to short acuminate, to 1.9 × 0.3;

dorsal lamina narrowed proximally, ending before or at insertion, infrequently ± decurrent;

vaginant laminae 1/2–4/5 leaf length, ± equal, minor lamina ending on or near margin;

margin entire, limbate on all laminae, limbidium confluent at apex or ending shortly before apex, extending to base of dorsal lamina, limbidial cells 2–3-stratose;

costa percurrent to excurrent, bryoides-type;

laminal cells 1-stratose, distinct, smooth, ± bulging, firm-walled, elongate, 7–22 × 4–13 µm, increasing in size toward proximal part of leaf.

as many as 20 pairs, lorate to lanceolate, acute to rounded, apiculate, to 2.35 × 0.35–0.65 mm;

dorsal lamina usually rounded proximally, ending at insertion, sometimes ending before insertion or slightly decurrent;

vaginant laminae 1/2 leaf length, ± equal, minor lamina ending on or near margin;

margin mostly crenulate on dorsal and ventral laminae, mostly serrulate on vaginant laminae and distally, elimbate;

costa variable in length, even on same plant, excurrent into apiculus to ending several cells before apex, taxifolius-type;

lamina cells 1-stratose, distinct, smooth, slightly bulging, firm-walled, quadrate to irregularly hexagonal, 6–15 µm, somewhat larger justacostally, marginal row thinner, paler.

to 12 mm.

rhizoautoicous;

perigonia gemmiform, proximal to infertile and fertile stems.

dioicous(?);

perigonia unknown;

perichaetia on short proximal stems and axillary in proximal leaves.

theca exserted, ± erect, radially symmetric to inclined, arcuate, bilaterally symmetic, 0.35–1.25 mm;

peristome bryoides-type;

operculum 0.25–0.3 µm.

cucullate, smooth, 0.5 mm.

11–18 µm.

1 per perichaetium.

, calyptra, and spores not known.