Flora of North America species comparison

conspicuously whitish pruinose, stout, 3–12 mm diam., bland to slightly sweet-tasting;

scales concolored to weakly bicolored, uniformly dark brown or with pale margins and base, lanceolate, symmetric, margins denticulate.

not whitish pruinose, slender to stout, 5–15 mm diam., taste unknown;

scales brown, ovate-acuminate, symmetric, somewhat to strongly clathrate, margins somewhat lighter, entire.

to 85 cm.

to 90 cm.

stout, to 3 mm diam.

slender to stout, to 7 mm diam.

ovate-lanceolate, pinnatifid, usually widest just above base, to 27 cm wide, stiff and leathery;

rachis sparsely scaly to glabrescent abaxially, glabrous adaxially;

scales bicolored, ovate-lanceolate, much more than 6 cells wide.

broadly ovate, 1-pinnate at base, widest at or near base, to 60 cm wide, papery to almost leathery;

rachis glabrous abaxially and adaxially.

oblong to linear, usually more than 12 mm wide;

margins entire to crenulate;

apex rounded to rarely broadly acute;

midrib glabrous adaxially.

(pinnae) linear to oblong, apex acuminate;

proximal segments stalked to nearly sessile, distal ones slightly narrowed but broadly adnate at base, less than 35 mm wide;

margins entire or slightly wavy;

apex acute;

midrib glabrous adaxially.

crowded against midrib, usually more than 3 mm diam., circular when immature.

in 1–3 parallel rows on both sides of costa, 0.5–3 mm diam., circular when immature.

usually less than 52 µm, rugose, surface projections less than 3 µm tall.

less than 58 µm, verrucose, with surface projections less than 3 µm. 2n = 148.

anastomosing, usually forming 1 row of areoles.

anastomosing with a regular series of 2–5 rows of areoles on both sides of costae.

absent.

absent.

= 74, 111.