Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

unbranched and branched;

axillary hyaline nodules present;

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.

as many as 16 pairs, oblong to lanceolate, acute to short-acuminate, to 1.3 × 0.25 mm;

dorsal lamina narrowed proximally, ending well above or at insertion;

vaginant laminae ± 4/5 leaf length, ± equal, minor lamina ending on or near margin;

margin ± entire to crenulate-serrulate, limbate on all laminae, limbidium variable, developed best on vaginant laminae, ceasing well before apex, limbidium cells 1-stratose;

costa ending 2–5 cells before apex to percurrent, bryoides-type;

laminal cells 1-stratose, distinct, smooth, somewhat bulging, firm-walled, irregularly quadrate to hexagonal, 9–14 µm, increasing somewhat in size and ± oblong in proximal parts of vaginant laminae.

to 5 mm.

2–6 mm.

rhizautoicous and gonioautoicous.

rhizautoicous;

perigonia gemmiform, proximal to fertile and infertile stems, and as branches along horizontal parts of stems.

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

peristome scariosus-type;

operculum to 0.5 mm.

theca exserted, erect, radially symmetric, 0.5–1.25 mm;

peristome anomalous, variable, even in same theca, teeth undivided, imperfectly divided or divided 4/5 their length, papillose distally, smooth proximally;

operculum 0.22–0.3 mm.

cucullate, smooth, to 0.6 mm.

cucullate, smooth, to 0.45 mm.

9–13 µm.

20–26 µm.

1 per perichaetium.

1 per perichaetium.