Flora of North America species comparison

unbranched and branched;

axillary hyaline nodules absent;

central strand weak.

branched and unbranched;

axillary hyaline nodules absent;

central strand weak or 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 18 pairs, lingulate to lanceolate, rounded to obtuse to broadly acute, to 1 × 0.25 mm;

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

vaginant laminae ± 1/2–2/3 leaf length, ± unequal, minor lamina ending near margin;

margin serrulate, limbate, ± entire in proximal 1/3–1/2 of perichaetial and subtending 1–2 pairs of leaves, limbidium sometimes indistinct, limbidial cells 1-stratose;

costa ending 3–25 cells before apex, often spurred distally, bryoides-type;

laminal cells 1-stratose, pluripapillose, obscure, firm-walled, irregularly quadrate to hexagonal, 4–8 µm, in transverse section usually twice as deep as wide.

to 5 mm.

to 2 mm.

rhizautoicous and gonioautoicous.

rhizautoicous, cladautoicous, rarely gonioautoicous.

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

peristome scariosus-type;

operculum to 0.5 mm.

theca exserted, erect, radially symmetric, to 0.6 mm;

peristome scariosus-type;

operculum 0.3 mm.

cucullate, smooth, to 0.6 mm.

cucullate, ± prorate, 0.3 µm. Spores 9–14µm.

9–13 µm.

1 per perichaetium.

1–2 per perichaetium.