Flora of North America species comparison

with branches robust, julaceous, apices curving up;

central strand present;

paraphyllia many, filamentous to foliose, branched.

with branches robust, julaceous, apices curving up;

central strand present;

paraphyllia many, filamentous, not branched.

appressed to somewhat erect when dry, erect-spreading when moist, glossy or dull, ovate to ovate-lanceolate, asymmetric, usually falcate to falcate-secund, 0.8–2(–2.5) mm;

margins strongly and narrowly recurved to near acumen;

apex abruptly acute to short- or rarely long-acuminate, hair-point absent;

costa subpercurrent to percurrent, orange-green, sometimes sinuate;

alar cells transversely elongate to quadrate, region large;

medial laminal cells heterogeneous, elliptic or isodiametric, to 25 µm, 1–2(–3):1, opaque or sometimes pellucid, prorate to near base, lumina smaller than 8 µm, walls firm to strongly incrassate, not pitted;

apical cells 1–2:1;

juxtacostal cells somewhat shorter than more distal cells, walls not pitted.

appressed to julaceous when dry, erect-spreading when moist, dull, ovate, asymmetric, rarely somewhat falcate, (0.5–)1–1.2 mm;

margins recurved proximally;

apex gradually acute to rarely short-acuminate, hair-point absent;

costa percurrent, green to yellow-green, somewhat sinuate;

alar cells transversely elongate, quadrate, or short-rectangular, region medium-sized;

medial laminal cells elongate-rhomboidal, to 40 µm, 3–4:1, opaque, distinctly prorate, walls incrassate, strongly pitted;

juxtacostal cells usually shorter than medial cells, walls pitted or not.

erect to suberect, symmetric, 1–2.5 mm;

endostome basal membrane 1/4–1/3 exostome length, segments shorter than exostome, cilia 1 or 2.

inclined to suberect, asymmetric, 0.5–1.2 mm;

endostome basal membrane 1/3–1/2 exostome length, segments shorter than exostome, cilia well developed to occasionally rudimentary.

10–20 µm.

(10–)12–18(–20) µm.