Flora of North America species comparison

1–5(–7.5) cm, fleshy, succulent, sparsely and irregularly branched;

cortical cells large, central strand distinct;

paraphyllia absent;

pseudoparaphyllia filamentous or absent;

rhizoids few, on leaf apices, hyaline to brown, unbranched;

axillary hairs hyaline, of 2–4 cells.

with obtuse apex;

laminal cells with scattered pairs of smaller cells, one relatively smaller and quadrate, resembling rhizoid initials at apex;

marginal cells width equal to medial cells.

ovate, oblong-ovate, elliptic, or broadly lanceolate, 2–4.5(–6) mm;

base somewhat decurrent;

laminal cells broadly oblong-hexagonal, oblong-rhomboidal, or short-rectangular, 100–200(–250) µm, pellucid, walls thin, sometimes heteromorphic with smaller cell-pairs scattered throughout leaf;

distal cells sometimes smaller;

marginal cells elongate.

(0.8–)1–2(–2.5) cm, flexuose-curved, stout.

strongly contracted below mouth when dry.

oblong-cylindric or ellipsoid, 1.5–2 mm, neck short;

exothecial cells subvesiculose;

stomata in neck, phaneropore;

annulus 1- or 2-seriate, weakly deciduous, cells large;

operculum conic, long-rostrate;

exostome teeth dark red, trabeculate, bordered, cross striolate basally, papillose distally;

endostome pale, finely papillose, segments narrowly perforate on keel.

shortly conic-mitrate, 2–2.5 mm.

(10–)12–17 µm, smooth to scarcely or minutely papillose.