Flora of North America species comparison

leaves triangular to lingulate-triangular, equal to or more than 0.8 mm, spreading to appressed;

apex acute to apiculate, hyaline cells mostly efibrillose and nonseptate.

leaves to 1.1 × 0.7 mm, commonly hemiisophyllous;

hyaline cells non-ornamented, mostly 1–2-septate.

± straight and somewhat tapered, usually 5-ranked, leaves not greatly elongated at branch distal end.

short and blunt at distal end, leaves loosely spreading.

narrowly ovate-lanceolate, greater than 1.2 mm, straight, slightly undulate and weakly recurved when dry, margins entire;

hyaline cells on convex surface with 1 pore per cell in apical end, on concave surface with round wall thinnings in the cell ends and angles; chlorophyllous cells in transverse section triangular to ovate-triangular and well-enclosed on the concave surface.

ovate, to 2.2 × 1.1 mm; ovate, hyaline cells non-ornamented, on proximal half of convex surface with small ringed pores or pseudopores in groups of three where the corners join and pseudopores along the commissures; chlorophyllous cells narrowly rectangular, lenticular to narrowly trapezoidal in transverse section; exposed equally on both surfaces or more broadly on concave surface;

end walls not thickened.

dioicous.

dioicous.

with numerous pseudostomata.

24–33 µm; finely papillose on the superficial surface.

25–39 µm;

surface smooth to irregularly and finely papillose;

indistinct Y-mark on distal surface;

proximal laesura more than 0.6 spore radius.

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

branch stems green and often reddish at proximal end, with cortex enlarged with conspicuous retort cells.

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

branch stems with hyaline cells non-ornamented, no or weak funnel-like projection of end walls of cortical cells, cortical cells with one large pore per cell on superficial wall.