Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules present;

central strand present.

unbranched and branched;

axillary hyaline nodules absent;

central strand absent.

as many as 16 pairs, oblong to lanceolate, acute to short-acuminate, to 1.3 × 0.25 mm;

dorsal lamina narrowed proximally, ending well above or at insertion;

vaginant laminae ± 4/5 leaf length, ± equal, minor lamina ending on or near margin;

margin ± entire to crenulate-serrulate, limbate on all laminae, limbidium variable, developed best on vaginant laminae, ceasing well before apex, limbidium cells 1-stratose;

costa ending 2–5 cells before apex to percurrent, bryoides-type;

laminal cells 1-stratose, distinct, smooth, somewhat bulging, firm-walled, irregularly quadrate to hexagonal, 9–14 µm, increasing somewhat in size and ± oblong in proximal parts of vaginant laminae.

as many as 12 pairs, oblong to lingulate, broadly acute to obtuse, sometimes apiculate, to 1.4 × 0.5 mm;

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

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

margin crenulate-serrulate but limbate and entire on proximal 1/3–1/2 of vaginant laminae of most leaves, limbidial cells 1-stratose;

costa ending 2–6 cells before apex, bryoides-type;

lamina cells 1-stratose, distinct, mammillose, firm-walled, irregularly hexagonal, 7–12 µm, smooth, larger, ± oblong, pellucid juxtacostally in proximal parts of vaginant laminae.

2–6 mm.

to 2 mm.

rhizautoicous;

perigonia gemmiform, proximal to fertile and infertile stems, and as branches along horizontal parts of stems.

gonioautoicous.

theca exserted, erect, radially symmetric, 0.5–1.25 mm;

peristome anomalous, variable, even in same theca, teeth undivided, imperfectly divided or divided 4/5 their length, papillose distally, smooth proximally;

operculum 0.22–0.3 mm.

theca exserted, erect, radially symmetric, 0.5 mm;

peristome scariosus-type;

operculum 0.4 mm.

cucullate, smooth, to 0.45 mm.

cucullate, smooth, 0.3–0.5 mm.

20–26 µm.

10–16 µm.

1 per perichaetium.

1 per perichaetium.