Flora of North America species comparison

leaves lingulate, 1–1.2 mm, apex entire to somewhat erose;

hyaline cells non-septate;

fibrillose and porose in apical region.

leaves triangular, ovate-triangular to triangular-lingulate, 1–1.3 mm; appressed to spreading;

apex obtuse, hyaline cells usually fibrillose near apex.

slender with small spreading leaves.

straight to somewhat curved, leaves moderately elongate at distal end.

ovate-lanceolate, 1.4–1.6 mm, straight to slightly subsecund, weakly undulate, often recurved in capitulum branches;

hyaline cells on convex surface with up to 5 small round faint pores per cell in the basal portion of the cell and free from the cell margins, concave surface aporose.

ovate-lanceolate; usually more than 2 mm; straight; weakly undulate and slightly recurved when dry, margins entire;

hyaline cells on convex surface with numerous small free pores in proximal 2/3 of leaf and in apical region with numerous pseudopores along commissures, on concave surface with numerous round free pores;

cells relatively long and narrow in basal region, much longer than in mid region; chlorophyllous cells triangular in transverse section and well-enclosed on concave surface.

unknown.

dioicous.

not seen.

not seen.

29–33 µm;

both surfaces very smooth;

proximal laesura long, more than 0.6 spore radius.

fascicles with 2 spreading and 2 pendent branches.

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

branch stems green, cortex enlarged with conspicuous retort cells.