| Literature for Dryopteris fuscoatra
Palmer, 2003. Literature for Dryopteris fuscoatra var. fuscoatra
Palmer, 2003. Literature for Dryopteris fuscoatra var. lamoureuxii
||Terrestrial, medium-sized; rhizomes decumbent to erect.
||Fronds in a shuttlecock arrangement on apexes of rhizomes, 30-80 cm long; stipe green (straw-colored when dry), densely clothed with (but not obscured by) narrow, gray to black, long-tapering scales; blade 1-pinnate-pinnatifid to 1-pinnate-pinnatisect, occasionally 2-pinnate, ovate-lanceolate to long-lanceolate, pale green below, darker green above, chartaceous; rachises adaxially grooved, straw-colored, with many linear-lanceolate, dark gray to brown to black scales; pinnae 16-30 pairs, linear-lanceolate, lowermost pinna pair not or minimally smaller than middle pinnae; ultimate segments elongate slightly falcate, lateral margins entire to slightly crenate, tips truncate to obtuse often with small teeth, segments at bases of pinnae usually not overlapping rachises; veins unforked or often 1-forked.
||Sori submedial to medial, 1-12 per segment in row on both sides of midrib, present on all pinnae, but sometimes sparse or absent on most proximal pinnae; indusia firm, persistent round.
||Latin fuscus, dark, dark brown, + atra black. The namer must have been impressed by the dark scales on this species.