Flora of North America species comparison

0.5–1.5 cm, 0.3–0.5 mm thick when dry, rarely branched, primary branches prostrate;

central strand cells not differentiated;

pseudoparaphyllia absent;

rhizoids few.

julaceous when dry, spreading, not complanate when moist, delicate, narrowly ligulate to tapering, 0.5–0.9 mm;

base narrowly decurrent;

margins plane, crenulate toward apex by prominent papillae;

apex narrowly obtuse to acuminate, often broken off;

costa weak, ending before mid leaf, obscured by laminal cells almost throughout, pellucid proximally, abaxial costa cells smooth;

basal laminal cells few, pellucid, smooth, region not reaching margin;

medial cells round, 4 µm, papillae many, unbranched.

rare, on terminal branches, leaves oblong, apex acuminate, laminal cells with 1 or 2 papillae per lumen.

unknown.