Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules present;

central strand weak or absent.

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

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 35 pairs, lanceolate to oblong-lingulate, acute to obtuse-apiculate; to 5 × 0.9 mm;

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

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

margin ± entire, limbate on all laminae, limbidium reaching apex or ending a few cells before apex and a few cells above insertion of dorsal lamina, limbidial cells 3- to 6-stratose;

costa ± percurrent, bryoides-type;

laminal cells 1-stratose, or variably 2-stratose, smooth, slightly bulging, firm-walled, irregularly quadrate to hexagonal, 8–13 µm, ± twice as deep as wide.

to 12 mm.

stout, to 3 mm, geniculate.

rhizoautoicous;

perigonia gemmiform, proximal to infertile and fertile stems.

probably rhizautoicous;

perigonia not seen;

perichaetia on elongate 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 emergent, erect, radially symmetric, to 1.2 mm;

peristome bryoides-type;

operculum 0.4 mm.

cucullate, smooth, 0.5 mm.

not seen.

11–18 µm.

23–40 µm.

1 per perichaetium.

1–2 per perichaetium.