Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand present or absent.

unbranched and branched;

axillary hyaline nodules weak or absent;

central strand weak.

as many as 20 pairs, elliptic to broadly lanceolate to oblong-lingulate, acute, short-acuminate to obtuse-apiculate, to 2 × 0.5 mm;

dorsal lamina narrowed proximally, ending before insertion to ± decurrent;

vaginant laminae 2/3–3/4 leaf length, equal;

margin ± entire but usually serrulate distally, limbate on all laminae, limbidium usually ending a few cells before apex, frequently edged by 1–2 rows of quadrate to oblong chlorophyllose cells in proximal parts of vaginant laminae, limbidial cells 1–2-stratose;

costa percurrent to ending 2–5 cells before leaf, infrequently short-excurrent, bryoides-type;

laminal cells 1-stratose, smooth, strongly bulging, densely chlorophyllose, ± obscure, firm-walled, irregularly quadrate to hexagonal, usually arranged in discernable rows in distal part of leaf, 6–10 µm, twice as deep as wide.

as many as 22 pairs, ligulate to oblong-lanceolate, obtuse-mucronate to acute, to 4 × 0.3–0.5 mm;

dorsal lamina narrowed proximally, ending at insertion or slightly before;

vaginant laminae 1/2–2/3 leaf length, equal in proximal leaves, unequal in distal leaves, minor lamina ending between margin and costa or rounded and ending on or near costa;

margin entire but sometimes serrulate distally, limbate on all laminae, limbidium confluent at apex or ending a few cells before, limbidial cells 2- to 5-stratose;

costa percurrent or ending in mucro, bryoides-type;

laminal cells 1- to irregularly 2-stratose, smooth, slightly bulging, firm-walled, irregularly hexagonal, many somewhat elongate, 10–16 µm, juxtacostal and basal cells of vaginant laminae somewhat larger, quadrate to oblong.

to 9 mm.

4–4.5 mm.

gonioautoicous and rhizautoicous.

rhizautoicous or synoicous;

perigonia and perichaetia on elongate stems.

theca exserted, inclined, bilaterally symmetric to erect, radially symmetric, to 1 mm;

peristome bryoides-type;

operculum 0.5 mm.

theca exserted, erect, radially symmetric to slightly inclined, bilaterally symmetric, 0.6–0.85 mm;

peristome bryoides-type;

operculum 0.4 mm.

cucullate, smooth, 0.8 mm.

not seen.

10–16 µm.

14–25 µm.

1–2 per perichaetium.

1–2 per perichaetium.