Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand present or absent.

unbranched;

axillary hyaline nodules absent;

central strands 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 5 pairs, oblong to oblanceolate to lanceolate, acute to short-acuminate, to 2.1 × 0.6 mm;

margin crenulate-serrulate but often sharply serrate on distal parts of vaginant laminae, elimbate;

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

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

costa ending 6–15 cells before apex, bryoides-type;

laminal cells 1-stratose, distinct, smooth, plane, firm-walled, long-hexagonal to oblong to regularly quadrate, decreasing in size from costa to margin, medial cells 10–54 × 12–25 µm, largest along costa, marginal cells 9–15 µm, juxtacostal cells in vaginant laminae pellucid, greatly enlarged.

to 9 mm.

2.5–5 mm.

gonioautoicous and rhizautoicous.

rhizautoicous and gonioautoicous.

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

peristome bryoides-type;

operculum 0.5 mm.

theca exserted, usually inclined, slightly arcuate, bilaterally symmetric, infrequently erect, nearly radially symmetric, 0.7 mm;

peristome scariosus-type;

operculum 0.3–0.8 mm.

cucullate, smooth, 0.8 mm.

cucullate, smooth, 0.4 mm.

10–16 µm.

9–13 µm.

1–2 per perichaetium.

1 per perichaetium.