Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules present;

central strand weak or absent.

mostly 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 60 pairs, somewhat undulate, oblong to lanceolate, acute, occasionally obtuse, to 3.5 × 1.2 mm;

dorsal lamina rounded or narrowed proximally, ending at insertion, not decurrent;

vaginant laminae 1/2–3/5 the leaf length, ± equal, minor lamina ending on or near margin;

margin crenulate to regularly serrulate but irregularly serrate distally, elimbate;

costa ending 2–3 cells before apex to percurrent, taxifolius-type;

laminal cells usually 1-stratose, infrequently and irregularly 2-stratose in the dorsal and ventral laminae, distinct, smooth, ± plane, firm-walled, irregularly quadrate to hexagonal, 10–20 µm, 1–5 marginal rows usually thinner with slightly thicker walls, forming a lighter marginal band, juxtacostal cells larger, mostly oblong and pellucid;

vaginant laminal cells somewhat larger.

to 12 mm.

to 25 mm.

rhizoautoicous;

perigonia gemmiform, proximal to infertile and fertile stems.

dioicous (?);

perigonia not seen;

perichaetia on short axillary branches, generally confined to proximal half of stems.

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

peristome bryoides-type;

operculum 0.25–0.3 µm.

theca mostly ± inclined, ± arcuate, bilaterally symmetric, to 1.5 mm;

peristome taxifolius-type;

operculum to 1.5 mm.

cucullate, smooth, 0.5 mm.

cucullate, smooth, to 2.5 mm.

11–18 µm.

13–22 µm.

1 per perichaetium.

1 per perichetium.