Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

unbranched and branched;

axillary hyaline nodules absent;

central strand weak or absent.

as many as 12 pairs, oblong to lanceolate, acute to obtuse-apiculate, most ending in a clear, sharp cell, to 1.8 × 0.4 mm;

dorsal lamina narrowed or rounded proximally, ending at or before insertion, not decurrent;

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

margin serrulate, limbate and entire to remotely denticulate on proximal 2/3 or less of vaginant laminae of most leaves of perichaetial stems, often absent from leaves of infertile stems, limbidium intralaminal in part or completely, limbidial cells 1-stratose;

costa ending 2–4 cells before apex or percurrent, ending in apiculus, infrequently short-excurrent, bryoides-type;

lamina cells 1-stratose, pluripapillose, obscure, firm-walled, rounded-hexagonal, 5–8 µm, twice as deep as wide.

as many as 12 pairs, lanceolate to oblong-lanceolate, rarely linear-lanceolate, acute or infrequently obtuse, to 2.5 × 0.5 mm;

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

vaginant laminae ± 1/2 leaf length, equal;

margin entire but serrulate distally, limbate on all laminae, limbidium confluent at apex or ending slightly before, limbidial cells 1- or 2-stratose;

costa percurrent to short-excurrent, bryoides-type;

laminal cells 1-stratose, distinct, smooth, slightly bulging, firm-walled, irregularly hexagonal, 6.5–18 µm, greatly enlarged, ± oblong, ± pellucid in juxtacostal patches in proximal portions of vaginant laminae.

to 5 mm.

rhizautoicous and gonioautoicous.

rhizautoicous and synoicous.

theca exserted, erect, radially symmetric, to 0.8 mm;

peristome scariosus-type;

operculum to 0.5 mm.

theca erect, radially symmetric to slightly arcuate, bilaterally symmetric, 0.5–0.8 mm;

peristome scariosus-type;

operculum to 0.8 mm.

cucullate, smooth, to 0.6 mm.

cucullate, smooth, 0.6 mm.

9–13 µm.

10–13 µm.

1 per perichaetium.

1–2 per perichaetium.