$modus 0: smartphone
$modus 1: smartphone
Cystopteris douglasii
Cystopteris douglasii Hook. [Accepted]
Dryopteridaceae Athyrioideae Physematieae
2 315709 Cystopteris douglasii Hook.
W.J. Hooker, Cent. Ferns: t. 55 (1861) [W.H. Fitch]
2 315709 Cystopteris douglasii Hook.
W.J. Hooker, J.D. Hooker, Icon. Pl., vol. 10 : t. 955 (1854) [W.H. Fitch]