Flora of North America species comparison

branched;

axillary hyaline nodules absent;

central strand present.

usually profusely branched;

axillary hyaline nodules present;

central strand absent.

as many as 28 pairs, sometimes ± undulate, oblong, obtuse-apiculate to acute, to 2.4 × 0.3–0.4 mm;

dorsal lamina narrowed proximally, ending before or at insertion;

vaginant laminae 1/2–2/3 leaf length, acute, ± unequal, minor lamina ending near margin;

margin evenly crenulate-serrulate but irregularly serrate distally;

costa ending 6–16 cells before apex, covered and obscured above by chlorophyllose cells, taxifolius-type;

lamina cells irregularly 2-stratose, smooth, bulging, firm-walled, irregularly rounded-hexagonal, 7.5–10 µm. Sexual condition gonioautoicous and cladautoicous;

perigonia gemmiform, axillary, and on short branches;

perichaetia on short axillary branches near proximal ends of stem.

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.

1.5–5.5 mm.

13–19 mm.

dioicous (?);

perigonia not seen;

perichaetia on short axillary branches in medial leaves.

theca 0.8–2.1 mm, erect, radially symmetric or nearly so;

peristome taxifolius-type;

operculum long rostrate, 0.6–0.9 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, 1.5 mm.

13–18 µm.

20–23 µm.

1 per perichaetium.