Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand present or absent.

branched;

axillary hyaline nodules absent;

central strand present.

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 28 pairs, sometimes ± undulate, oblong, obtuse-apiculate to acute, to 2.4 × 0.3–0.4 mm;

dorsal lamina narrowed proximally, ending before or at insertion;

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

margin evenly crenulate-serrulate but irregularly serrate distally;

costa ending 6–16 cells before apex, covered and obscured above by chlorophyllose cells, taxifolius-type;

lamina cells irregularly 2-stratose, smooth, bulging, firm-walled, irregularly rounded-hexagonal, 7.5–10 µm.

to 9 mm.

1.5–5.5 mm.

gonioautoicous and rhizautoicous.

gonioautoicous and cladautoicous;

perigonia gemmiform, axillary, and on short branches;

perichaetia on short axillary branches near proximal ends of stem.

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

peristome bryoides-type;

operculum 0.5 mm.

theca 0.8–2.1 mm, erect, radially symmetric or nearly so;

peristome taxifolius-type;

operculum long rostrate, 0.6–0.9 mm.

cucullate, smooth, 0.8 mm.

cucullate, smooth, 1.5 mm.

10–16 µm.

13–18 µm.

1–2 per perichaetium.

1 per perichaetium.