knowlton.] TERTIARY PLANTS OF NORTH AMERICA. 43 
Arundo Gopperti? Miinst. in Lx. Arm. Kept. U. S. Geol. and 
Geogr. Surv. Terr., 1871, suppl., p. 5, 1871 [1872] ; Tert. Fl., p. 86, pi. 
viii, f. 3-5, 1878. 
Green River group: Green Eiver, Wyoming. 
Denver group : Silver Cliff, Colorado. 
Arundo? obtusa Lx. Bull. U. S. Geol. and Geogr. Surv. Terr., vol. 
i, p. 385, 1875 [1876] ; Ann. Kept. IT. S. Geol. and Geogr. Surv. Terr., 
p. 311, 1874 [1876]; Tert, FL, p. 87, pi. viii, f. 9, 9c, 1878. 
Denver group : Golden, Colorado. 
Arundo reperta Lx. Bull. U. S. Geol. and Geogr. Surv. Terr., vol. i, 
p. 384, 1875 [1876]; Ann. Eept. U. S. Geol. and Geogr. Surv. Terr., 
p. 311, 1874 [1876]. 
Green Eiver group : Green Eiver, Wyoming. 
ASIMINA Adanson. Fam. PI., vol. ii, p. 365, 1763. 
Asimina eocenica Lx. Ann. Eept. U. S. Geol. and Geogr. Surv. Terr., 
p. 387, lb72 [1873]; Tert. FL, p. 251, pi. xliii, f. 3-S. 1878. 
Denver group: Golden, Colorado. 
Laramie group?: Carbon, Wyoming. 
Asimina triloba (L.) Don. Penhallow, Bull. Geol. Soc. Am., vol. i, p. 
323, 1890; Hollick, Bull. Torr. Bot. Club, vol. xix, p. 331, 1892. 
Pleistocene : Don Eiver, Toronto. 
Miocene?: Bridgeton, New Jersey. 
ASPIDIOPHYLLUM Lesquereux. Ann. Eept. U. S. Geol. and 
Geogr. Surv. Terr., p. 361, 1874 [1876]. 
Aspidiophyllum dentatum Lx. Cret. and Tert. FL, p. 88, 1883; Fl. 
Dak. Gr., p. 212, pi. xxxix, f. 1,1892. 
Dakota group : Kansas. 
Aspidiophyllum platanifolium Lx. Cret. and Tert. FL, p. 88, pi. ii, 
f. 4, 1883. 
Dakota group : Clay County, Kansas. 
Aspidiophyllum trilobatum Lx. Ann. Eept. L^. S. Geol. and Geogr. 
Surv. Terr., p. 361, pi. ii., f. 1, 2, 1874 [1876]; Cret. and Tert. FL, p. 
87, pi. xii, f. 1; pi. xiii, f. 1-5; pi. xiv, f. 1, 1883. 
Dakota group: Kansas. 
Aspidium angustipinnatum Font.=Dryopteris angustipinnata. 
Aspidium angustipinnatum montanense Font. = Dry opteris angustipin- 
nata montanense. 
Aspidium cystopteroides Font.=Dryopteris cystopteroides. 
Aspidium dentatum Font. = Dryopteris dentata. 
Aspidium Dunkeri (Schimp.) Font. = Cladophlebis Dunkeri. 
Aspidium ellipticum Font. = Dry opteris elliptica. 
Aspidium "Fisheri" Heer. Lesquereux (1870)=Lastrea intermedia. 
Aspidium fredericksburgense Font. = Dryopteris fi edericksburgense. 
Aspidiuin goldiauum Lx. = Lastrea goldiana. 
Aspidium lieterophylla Font. = Dryopteris lieteropnylla. 
