Flora of North America species comparison

leaves ovate-triangular to triangular, 1–1.6 mm; appressed to spreading;

apex acute to slightly obtuse;

hyaline cells often fibrillose and often 1-septate.

leaves 0.7–1 mm (to 1.2 mm in hemiisophyllous forms) elongate-triangular to triangular-lingulate, apex obtuse-erose, to apiculate; usually fibrillose at least apically; in hemiisophyllous forms spreading and in anisophyllous forms appressed;

hyaline cells often septate at base.

straight and unranked, in capitulum tapering at distal end to a point, leaves greatly elongated at distal end.

moderately long and tapering, unranked to weakly 5-ranked, leaves not much elongated at distal end.

ovate-lanceolate to lanceolate, 2–3.5 mm; straight, undulate and slightly recurved when dry;

margin serrulate;

hyaline cells on convex surface with 0–1 small pores at cell apex on concave surface with round wall thinnings in cell angles (often indistinct or lacking); chlorophyllous cells trapezoidal in transverse section and exposed more broadly on the convex surface.

1–1.7 mm, ovate-lanceolate, undulate and recurved when dry;

hyaline cells on convex surface with 3–10 round pores per cell in the cell angles and free, on concave surface with round wall thinnings in the ends and angles.

monoicous.

unknown.

26–40 µm; ± roughly to densely granulose.

not seen.

stems green, cortex enlarged with conspicuous retort cells.

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

branch stem cortex enlarged and with conspicuous retort cells.