Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

unbranched;

axillary hyaline nodules absent;

central strand 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 6 pairs, lanceolate, acute to obtuse, sometimes apiculate, to 2.2 × 0.5 mm;

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

vaginant laminae 1/3–1/2 leaf length, equal;

margin entire but sometimes ± serrulate distally, limbate, limbidium 1–2 cells wide, ending before apex, often indistinct on vaginant laminae, limbidial cells 1-stratose; ecostate, or costa consisting of very short proximal vestige;

laminal cells 1-stratose, smooth, thin-walled, hexagonal to elongate-hexagonal, 31–67 × 14–34 µm, ± oblong in proximal portions of leaves, particularly in vaginant laminae.

to 5 mm.

to 3 mm.

rhizautoicous and gonioautoicous.

rhizautoicous;

perigonia gemmiform, proximal to perichaetial stems, and on elongate stems, to 1.2 mm.

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

peristome scariosus-type;

operculum to 0.5 mm.

theca exserted, erect, radially symmetric, sometimes slightly arcuate, bilaterally symmetric, to 0.4 mm;

peristome scariosus-type;

operculum ± as long as theca.

cucullate, smooth, to 0.6 mm.

mitrate, prorate, 0.4 mm.

9–13 µm.

9–13 µm.

1 per perichaetium.

1 per perichaetium.