Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules present;

central strand present.

unbranched;

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 4 pairs, lanceolate to oblong-lanceolate, acute to obtuse-apiculate, to 2.1 × 0.4 mm;

dorsal lamina ending before insertion;

vaginant laminae 2/5 leaf length, unequal, minor lamina narrowed, ending on or near costa;

margin of dorsal and ventral laminae ± entire to crenate-serrulate, crenate-dentate on vaginant laminae, elimbate;

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

laminal cells distinct, smooth, plane, firm-walled, irregularly quadrate to irregularly hexagonal, 10–15 µm, marginal cells slightly smaller, vaginant laminal cells somewhat larger with 2–3 intralaminal rows irregularly elongate.

2–6 mm.

2–9 mm.

rhizautoicous;

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

rhizautoicous;

perigonia gemmiform, proximal to perichaetial stems or scattered over protonemata.

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, infrequently slightly arcuate, bilaterally symmetric, to 0.7 mm;

operculum 0.4–0.6 mm;

peristome scariosus-type.

cucullate, smooth, to 0.45 mm.

cucullate, smooth, 0.5 mm.

20–26 µm.

11–14 µm.

1 per perichaetium.

1 per perichaetium.