Flora of North America species comparison

short-creeping to compact, usually 4–8 mm diam.;

scales bicolored, with broad, well-defined, dark, central stripe and narrow, light brown margins, narrowly lanceolate, slightly contorted, strongly appressed, persistent.

short-creeping, usually 4–7 mm diam.;

scales uniformly brown or slightly darker at base, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent.

clustered, 10–60 cm;

vernation noncircinate.

clustered, 10–50 cm;

vernation noncircinate.

dark brown, rounded adaxially.

black to dark brown, rounded adaxially.

linear, pinnate-pinnatifid throughout, 1–4 cm wide;

rachis rounded adaxially, lacking scales, with dense monomorphic pubescence.

ovate-deltate, 3-pinnate to 3-pinnate-pinnatifid at base, 4–15 cm wide;

rachis rounded adaxially, lacking scales, with dimorphic pubescence, abaxially sparsely hirsute, adaxially covered with tortuous, appressed hairs.

elongate-deltate to ovate, not especially beadlike, the largest 1–7 mm, abaxially densely tomentose, adaxially hirsute.

narrowly elliptic to elongate-deltate, not beadlike, the largest 3–6 mm, abaxially and adaxially sparsely hirsute to glabrescent.

articulate at swollen, hirsute nodes, basal pair slightly smaller than adjacent pair, ± equilateral, appearing hirsute adaxially.

not articulate, dark color of stalk continuing into pinna base, basal pair slightly larger than adjacent pair, somewhat inequilateral, proximal basiscopic pinnules conspicuously enlarged, appearing glabrous or sparsely pubescent adaxially.

marginal, weakly differentiated, 0.05–0.25 mm wide.

marginal, slightly differentiated, 0.05–0.25 mm wide.

± continuous around segment margins.

somewhat discontinuous, often concentrated on interrupted lateral lobes.

containing 32 spores.

containing 64 spores.

absent.

black adaxially for most of length;

abaxial scales absent.

= 2n = 90, apogamous.

= 58.