Flora of North America species comparison

leaves triangular, 1–1.7 mm, apex acute to slightly obtuse;

leaves usually appressed;

margins entire;

hyaline cells fibrillose and usually septate at base and sides.

leaves triangular-lingulate to lingulate, 0.7–1.4 mm;

apex rounded-obtuse and weakly denticulate;

hyaline cells nonseptate, mostly efibrillose, and, if porose, with more pores per cell on the concave surface (3–6) than on the convex surface (0–2).

unranked, long and tapering, leaves greatly elongated at distal end.

somewhat curved, leaves spreading.

ovate-lanceolate to lanceolate, 3–5.5 mm; straight but sometimes slightly falcate-secund; weakly undulate and recurved when dry;

margins entire;

hyaline cells on convex surface with 0–1 pore per cell, on concave surface with round wall thinnings on the apices and angles; chlorophyllous cells narrowly triangular in transverse section and just enclosed on the concave surface.

ovate to ovate-lanceolate, 1.2–2 mm;

subsecund;

hyaline cells with numerous tiny pores in a continuous line along the commissures on the convex surface, no or scattered pores on the concave surface.

dioicous.

dioicous.

exserted, with scattered pseudo-stomata.

26–29 µm;

both surfaces distinctly papillose, appearing pusticulate to irregularly pusticulate;

proximal laesura mostly less than 0.5 spore radius.

22–28 µm;

papillose on both surfaces;

proximal laesurae more than 0.5 spore radius.

fascicles with 2 spreading and 2 pendent branches.;

branch stems green;

cortex enlarged with conspicuous retort cells.

fascicles with 2–3 spreading and 2–3(4) pendent branches.