Flora of North America species comparison

unbranched and sparingly branched;

axillary hyaline nodules weak;

central strand present.

usually profusely branched;

axillary hyaline nodules absent;

central strand absent.

in as many as 25 pairs, often undulate, mostly lingulate, rounded to obtuse to broadly acute, sometimes apiculate, to 4 × 0.5 mm;

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

vaginant laminae 1/2–3/4 the leaf length, unequal, minor lamina of most leaves rounded and free distally, or narrowed distally and ending on or near costa;

margin ± entire to crenulate-serrulate, sometimes unevenly so distally, elimbate except for a weak limbidium in the proximal parts of vaginant laminae, limbidial cells 1-stratose;

costa ending several cells before apex, oblongifolius-type, distal part of leaf in transverse section showing enlarged cells arranged in a single row;

laminal cells of dorsal and ventral laminae 1-stratose, distinct, smooth, lenticularly thickened but appearing bulging, firm-walled, irregularly hexagonal, 7–12 µm long;

juxtacostal and interior proximal cells of vaginant laminae 1-stratose, smooth, plane, quadrate to ± oblong, larger;

medial marginal cells of vaginant laminae ± elongate, oriented obliquely.

in numerous pairs, lanceolate to linear-lanceolate, acute, to 6.5 × 0.7 mm;

dorsal lamina narrowed proximally, usually ending before insertion;

vaginant laminae 1/4–1/2 leaf length, acute, unequal in most leaves, minor lamina rounded above, attached on or near costa, ± equal on proximal part of stem, minor lamina ending near leaf margin;

margin ± entire, elimbate or limbate in the proximal 2/3 or less of vaginant laminae;

costa ending 5–15 cells before apex, bryoides-type;

laminal cells 1-stratose, distinct, smooth, slightly bulging, ± firm-walled, quadrate to oblong to hexagonal, 10–15 × 9–11 µm. Sexual condition cladautoicous;

perigonia on elongate, axillary branches;

perichaetia terminal on mains stems and elongate, axillary branches.

to 6 mm.

0.7–1.5 mm, often bent at the vaginula.

dioicous;

perigonia and perichaetia on elongate stems;

naked archegonia at times in axils of distal leaves.

theca ± erect, radially symmetric to slightly arcuate, bilaterally symmetric, to 1.5 mm;

peristome taxifolius-type;

operculum ± as long as theca.

theca erect, radially symmetric, 0.4–0.8 mm;

peristome anomalous, teeth variable, undivided and often fenestrate to divided 2/3 their length, even in same capsule, nearly smooth to papillose proximally, filaments with straight or spiral thickenings or striations;

operculum 0.4–0.6 mm.

cucullate, smooth, 1–1.7 µm. Spores 7.5–12 µm.

not seen.

14–32 µm.

1–2 per perichaetium, orange-red.

1–2 per perichaetium.