KEY TO THE SUBSPECIES

1	Petiole 3-15 cm long, 1/5-½ of the length of the lamina; indusium 0.3-0.4 mm wide, at least in the inner sori almost or quite reaching the margin Lindsaea lucida subsp. lucida
1'	Petiole 1-2(-4) cm long, 1/15-1/20 of the length of the lamina; indusium 0.2 mm wide, more strongly intramarginal. Lindsaea lucida subsp. brevipes