Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand present or absent.

usually unbranched;

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 40 pairs, lanceolate to oblong-lanceolate, generally broadly acute, 0.4–1.5 × 0.2–0.3 mm;

dorsal laminae narrowed proximally, often ending well before insertion;

vaginant laminae 1/2–3/4 leaf length, ± equal, minor lamina ending on or near margin;

margin entire but often ± serrate distally, limbate on the vaginant laminae, infrequently limbate on dorsal and ventral laminae of perichaetial leaves, limbidial cells 1-stratose;

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

laminal cells 1-stratose, distinct, smooth, slightly bulging, firm-walled, irregularly quadrate to hexagonal, 8–11 µm.

to 9 mm.

1.75–6 mm.

gonioautoicous and rhizautoicous.

polyoicous, most frequently gonioautoicous;

naked antheridia often in axils of distal leaves.

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

peristome bryoides-type;

operculum 0.5 mm.

theca exserted, usually erect, radially symmetric, 0.4–0.8 mm;

peristome bryoides-type;

operculum 0.6 mm.

cucullate, smooth, 0.8 mm.

not seen.

10–16 µm.

14–20 µm.

1–2 per perichaetium.

1 per perichaetium.