Flora of North America species comparison

usually branched;

axillary hyaline nodules absent;

central strand present.

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

as many as 25 pairs, often undulate, oblong to lanceolate, obtuse to acute, often apiculate, to 3.5 × 0.7 mm;

dorsal lamina truncate-rounded proximally, ending at insertion, not decurrent;

vaginant laminae 2/3 the leaf length, ± unequal, minor lamina ending near margin;

margin crenulate to crenulate-serrulate but unevenly serrate at leaf apex, elimbate;

costa ending a few cells before apex to percurrent, taxifolius-type;

laminal cells irregularly 2-stratose in dorsal and ventral laminae, ± obscure, smooth, bulging, firm-walled, rounded-hexagonal, 7–10 µm, 3–4 rows of marginal cells thinner, walls slightly thicker, forming a pale marginal band.

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.

to 11 mm.

to 5 mm.

dioicous;

perigonia on short axillary branches and elongate stems;

perichaetia on short axillary branches, mostly near proximal ends of stems.

rhizautoicous and gonioautoicous.

theca slightly inclined, slightly arcuate, bilaterally symmetric, to 1.8 mm;

peristome taxifolius-type;

operculum 1–1.4 mm.

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

peristome scariosus-type;

operculum to 0.5 mm.

cucullate, smooth, 1.8 mm.

cucullate, smooth, to 0.6 mm.

13–20 µm.

9–13 µm.

1 per perchaetium.

1 per perichaetium.