Flora of North America species comparison

mostly branched;

axillary hyaline nodules absent;

central strand present.

usually profusely branched;

axillary hyaline nodules present;

central strand absent.

as many as 15 pairs, often undulate, oblong to lanceolate, obtuse to broadly acute, cuspidate, to 2.7 mm × 0.6 mm;

dorsal lamina truncate-rounded proximally, ending at insertion, not decurrent;

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

margin evenly serrulate, often crenulate-serrulate on dorsal and ventral laminae, elimbate;

costa ending in cuspidate apex, taxifolius-type;

laminal cells 1-stratose, distinct, smooth, bulging, firm-walled, irregularly hexagonal, 8–11 µm frequently paler at margin, conspicuously mammillose in vaginant laminae, larger and clearer juxtacostally.

in as many as 60 or more pairs, lanceolate, obtuse to rounded, to 3 × 0.5 mm;

dorsal lamina narrowed proximally, ending at insertion;

vaginant laminae 1/2–2/3 leaf length, acute, equal;

margin ± entire to crenulate, elimbate;

costa usually difficult to discern, ending a few cells before apex, variable in structure, basically taxifolius-type;

lamina cells 1- to 4-stratose at leaf margin, 2- to pluristratose in interior of dorsal and ventral laminae, 1- to 4-stratose in vaginant laminae, smooth, ± plain, quadrate to hexagonal, 7–13 µm long.

to 17 mm.

13–19 mm.

rhizautoicous;

perigonia on short branches proximal to elongate stems;

perichaetia on short, proximal, axillary branches.

dioicous (?);

perigonia not seen;

perichaetia on short axillary branches in medial leaves.

theca slightly inclined, slightly arcuate, bilaterally symmetric, to 1.5 mm;

peristome taxifolius-type;

operculum to 1 mm.

theca slightly arcuate, bilaterally symmetric, astomatose, exothecial cells quadrate to oblong, vertical walls thicker than horizontal walls, 1.5–2 mm;

peristome taxifolius-type.

cucullate, smooth, to 2 mm.

13–18 µm.

20–23 µm.

1 per perichaetium.