Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand present or absent.

unbranched and branched;

axillary hyaline nodules 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 10 pairs, lanceolate to lingulate, acute to obtuse-apiculate, to 1.3 × 0.4 mm;

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

vaginant laminae ± 1/2 leaf length, equal;

margin serrulate, limbate and entire on complete length of vaginant laminae and often on proximal portion of adjacent ventral laminae of all leaves except smallest, limbidial cells 1-stratose;

costa percurrent to ending 2–3 cells before apex, bryoides-type;

laminal cells 1-stratose, distinct, mammillose, firm-walled, quadrate to hexagonal, 7–9 µm. Sexual condition rhizautoicous;

perigonia gemmiform, proximal to fertile and infertile stems.

to 9 mm.

to 3.5 mm.

gonioautoicous and rhizautoicous.

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 0.6 mm;

peristome scariosus-type;

operculum to 9.4 mm.

cucullate, smooth, 0.8 mm.

cucullate, smooth, to 0.5 mm.

10–16 µm.

11–23 µm.

1–2 per perichaetium.

1 per perichaetium.