Flora of North America species comparison

rarely whitish to glaucous, moderately stout to slender, to 8 mm diam., acrid- or slightly sweet-tasting;

scales concolored brown or slightly darker near point of attachment, lanceolate-ovate, symmetric, margins entire to erose.

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.

to 70 cm.

to 85 cm.

usually slender, to 3 mm diam.

stout, to 3 mm diam.

lanceolate-ovate to oblong, pinnatifid, widest below middle or occasionally at base, to 16 cm wide, leathery to herbaceous;

rachis sparsely scaly to glabrescent abaxially, puberulent adaxially;

scales lanceolate-ovate, usually more than 3 cells wide.

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.

linear-lanceolate to oblong, usually less than 15 mm wide;

margins conspicuously serrate;

apex obtuse to acute;

midrib puberulent adaxially.

oblong to linear, usually more than 12 mm wide;

margins entire to crenulate;

apex rounded to rarely broadly acute;

midrib glabrous adaxially.

midway between margin and midrib or slightly closer to midrib, usually less than 4 mm diam., oval when immature.

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

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

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

weakly to moderately anastomosing, some to many segments lacking areoles.

anastomosing, usually forming 1 row of areoles.

absent.

absent.

= 74, 111.