Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

usually profusely branched;

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.

in numerous pairs, lanceolate to linear-lanceolate, acute, to 6.5 × 0.7 mm;

dorsal lamina narrowed proximally, usually ending before insertion;

vaginant laminae 1/4–1/2 leaf length, acute, unequal in most leaves, minor lamina rounded above, attached on or near costa, ± equal on proximal part of stem, minor lamina ending near leaf margin;

margin ± entire, elimbate or limbate in the proximal 2/3 or less of vaginant laminae;

costa ending 5–15 cells before apex, bryoides-type;

laminal cells 1-stratose, distinct, smooth, slightly bulging, ± firm-walled, quadrate to oblong to hexagonal, 10–15 × 9–11 µm. Sexual condition cladautoicous;

perigonia on elongate, axillary branches;

perichaetia terminal on mains stems and elongate, axillary branches.

to 5 mm.

0.7–1.5 mm, often bent at the vaginula.

rhizautoicous and gonioautoicous.

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

peristome scariosus-type;

operculum to 0.5 mm.

theca erect, radially symmetric, 0.4–0.8 mm;

peristome anomalous, teeth variable, undivided and often fenestrate to divided 2/3 their length, even in same capsule, nearly smooth to papillose proximally, filaments with straight or spiral thickenings or striations;

operculum 0.4–0.6 mm.

cucullate, smooth, to 0.6 mm.

not seen.

9–13 µm.

14–32 µm.

1 per perichaetium.

1–2 per perichaetium.