Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

sparingly branched;

axillary hyaline nodules absent;

central strand present.

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 as many as 20 pairs, obovate to lanceolate, usually widest proximal to the middle, broadly acute to obtuse, often apiculate, 0.7– 2 × 0.3–0.7 mm;

dorsal lamina rounded-truncate proximally, ending at or sometimes before insertion;

vaginant laminae ± 1/2–3/4 the leaf length, ± equal, minor lamina ending on or near margin;

margin crenulate throughout or evenly serrulate distally, elimbate;

costa ending 2–14 cells before apex, taxifolius-type;

lamina cells 1-stratose, distinct, smooth, bulging, firm-walled, ± hexagonal, 10–18 µm. Sexual condition dioicous;

perigonia and perichaetia on elongate stems.

to 5 mm.

2–2.5 mm.

rhizautoicous and gonioautoicous.

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

peristome scariosus-type;

operculum to 0.5 mm.

theca erect, bilaterally symmetric, to 1 mm;

peristome taxifolius-type;

operculum 1 mm.

cucullate, smooth, to 0.6 mm.

mitrate, smooth, 1.5 mm.

9–13 µm.

16–23 µm.

1 per perichaetium.

1 per perichaetium.