Flora of North America species comparison

leaves 0.8–1.1 mm, triangular-lingulate to lingulate, concave, spreading, apex broadly obtuse, hyaline cells fibrillose in apical region.

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.

slender and tapering, often 5-ranked and decurved, leaves somewhat elongated at distal end.

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

ovate-lanceolate, 1–1.7 mm, straight, slightly undulate and spreading;

margin entire, hyaline cells on convex surface with 1–5 pores in cell ends and free near apex, on concave surface with round wall thinnings in cell ends and angles; chlorophyllous cells triangular in transverse section and well-enclosed on concave surface.

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.

dioicous.

monoicous.

25–33 µm; smooth to finely papillose on both surfaces;

proximal laesura approximately 0.5 spore radius.

26–40 µm; ± roughly to densely granulose.

fascicles with 2 spreading and mostly 1 pendent branch.;

branch stem green, cortex enlarged with conspicuous retort cells.

stems green, cortex enlarged with conspicuous retort cells.