l8o 'MAINK AGRICULTURAL EXPERIMENT STATION. I912. 



POLYPODIACEAE. FERN FAMILY. 



ACROSTICHUM. 



A. reticulatum Kaufl. 



Idioptcrus nephrelepidis Davis. Essig, 1911b, p. 541. 

 Macrosiphiim kirkaldyi. FuUaway, 1909, p. 2^. 



ADIANTUM. Maidenhair. 

 A. pedatum L. 



Aphis adianti Oestlund. Oestliind, 1887, p. 66. 



CYSTOPTERIS. Bladder Fern. 



C. montana (Lam.) Bernh. 

 Amphorophora ampiillata Buckton. Lichtenstein, La Flore. 

 Rhopalosiphwiii staphyleae Koch ? Buckton, i, p. 188. 



NEPHROLEPIS. 



N. exaltata. Sword-fern. 

 Idiopterus nephrelepidis Davis. Davis, 1909c, p. 199. Essig, 1911b, 

 p. 541- 



ONOCLEA. 



O. struthiopteris L. Ostrich Fern. 

 Rhopalosiphiiiii aiiipiillafa (Buckton). Oestlund, 1887, p. 77. 



PTERIS. Brake. 



P. aquilina L. Common Brake. 



Aphis (Adactynus) pteris-aqnilinoides Rafinesque. Rafinesque, 1817. 

 Mastopoda pteridis Oestlund. Oestlund, 1887, p. 49. 

 Mastopoda pteridis Oestlund. Patch, 1910b, p. 246. 



A'lARSILEACEAE. 



MARSILEA. 



M. quadrifolia L. 



Rhopalosiphiiiii uyjuphacac (Linn.) Koch (A. butomi Schrank) (R. 



najadum Koch). Passerini, 1863, p. 21. 

 M. vestita Hook and Grey. 

 Myciis pcrsicae Sulzer. Gillette and Taylor, 1908, p. 36. 



SALVINIACEAE. 



SALVINIA. 



S. natans L. 



Rhopalosiphiiiii uyiiiphacac (Linn) Koch (A. butomi Schrank) ( R. 



najadum Koch). Passerini, 1863, p. 21. 



