Flora of North America species comparison

leaves lingulate,small, equal to or less than 0.8 mm, appressed to stem;

apex with strong lacerate split in the middle;

hyaline cells efibrillose, aporose, and nonseptate.

leaves triangular-lingulate, 0.8–1.4 mm, spreading to appressed;

apex acute to narrowly obtuse, hyaline cells nonseptate and fibrillose near apex.

strongly 5-ranked, short and blunt, not much elongated at distal end.

unranked or weakly 5-ranked, straight to strongly curved, leaves moderately elongated at distal end.

ovate; usually less than 1.5 mm;

stiff and slightly reflexed, straight to slightly subsecund;

margins entire;

hyaline cells moderately long and narrow (6–8:1), convex surface with one small round pore per cell at apex and numerous pseudopores on the margin, concave surface with large round wall thinnings in the cell angles and ends; chlorophyllous cells triangular in transverse section, with apex reaching concave surface.

ovate-lanceolate to narrowly ovate-lanceolate, 1.8–3.4 mm; straight to strongly subsecund; weakly undulate and recurved when dry;

margins entire;

hyaline cells on convex surface with 1–2 free pores per fibril interval, concave surface aporose or rarely with a few wall thinnings in cell ends and angles; chlorophyllous cells trapezoidal in transverse section and narrowly exposed on concave surface.

unknown.

dioicous.

not seen.

33–40 µm.

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

branch stems green, with cortex enlarged with retort cells.

fascicles with 2 spreading and 1–2 pendent branches.;

branch stems green but sometimes reddish at proximal end, with cortex enlarged with conspicuous retort cells.