Flora of North America species comparison

leaves smaller than branch leaves, oblong to lingulate, moderately lacerate across broad rounded apex, border entire and broad at base;

hyaline cells rhomboid, aporose, non-ornamented, usually efibrillose, resorbed on distal portion of leaf with membrane pleats in proximal portion.

dimorphic, the spreading branches stronger than the pendent branches.

broadly ovate, very concave, apex broadly truncate, smooth, and toothed;

margin entire;

hyaline cells non-ornamented, fibrillose;

with elliptic, ringed pores at ends and corners of cells, usually found in 3s at adjoining cell walls, pores more numerous on concave surface (5–8 per cell) than on convex surface (3–5 per cell); chlorophyllous cells in transverse section narrowly truncate-elliptic to lenticular, lacking wall sculptures, with thickened end walls equally exposed on both surfaces.

dioicous.

not seen.

not seen.

fascicles with 2–3 spreading and 2–3 pendent branches.;

branch stems green, surrounded by 1 layer of efibrillose, non-ornamented, inflated, thin-walled cells with inconspicuous necks.