knowlton.] TERTTARY PLANTS OF NORTH AMERICA. 75 
COMPTONIA Banks. Gaertn. Fr. and Sem., vol. ii, p. 58, pi. xc, 1791. 
Comptonia columbiana Dn. Trans. Roy. Soc. Canada, vol. viii, sec. 
iv, p. 81, f. (in text) 10, 1890. 
Miocene ? : North Similkamen and Kamloops, British Columbia. 
Comptonia cuspidata Lx. = Myrica cuspidata. 
Comptonia premissa Lx. == Myrica premissa. 
CONE of Pinus? sp., Font. Potomac Fl., p. 272, pi. clxx, f. 4, 1889. 
Potomac formation : Baltimore, Maryland. 
CONOSPERMITES Ettingshausen. Sitzb. Wien. Akad., vol. lv, 
abt. i, p. 254, 1867. 
Conospermites ellipticus Font. Potomac Fl., p. 279, pi. cxxxviii, f. 
14, 1889. 
Potomac formation : Near Potomac Run, Virginia. 
Cordia? tiliaefolia Al. Br. = Ficus tilisefolia. 
CORNOPHYLLUM Newberry. Fl. Amboy Clays, p. 119, 1895 [1896]. 
Cornophyllum vetustum Newby. Fl. Amboy Clays, p. 119, pi. xix, f. 
10, 1895 [1896]. 
Amboy clay : Woodbridge, New Jersey. 
CORNUS (Tournefort) Linnaeus. Syst., ed. i, 1735. 
Cornus acuminata Newby.=Cornus Newberryi. 
Cornus Emmonsii Ward = Cornus impressa. 
Cornus ferox Ung. Gen. et Sp. PI. Foss., p. 441, 1850; Lx., Proc. U. S. 
Nat. Mus., vol. xi, p. 21, 1888. 
Eocene? : Cherry Creek, Oregon. 
? Cornus Fosteri Ward. Bull. U. S. Geol. Surv., no. 37, p. 54, pi. xxv, 
f. 5, 1887. 
Fort Union group: Seven-Mile Creek, Montana. 
Cornus Holmesii Lx. Ann. Rept. U. S. Geol. and Geogr. Surv. Terr., 
p. 402, 1873 [1874]. [Not afterwards recognized.] 
Laramie group ? : Coal Creek, Colorado. 
Cornus hyperborea Herr. Fl. Foss. Arct., vol. ii, abt. iv, p. 476, pi. 1, 
f. 3, 4, 1869; Lx., Proc. U. S. Nat. Mus., vol. xi, p. 29, pi. xv, f. 3, 1888. 
Eocene?: Lassen County, California. 
Denver beds : Mount Bross, Middle Park j North Denver, Colorado. 
Laramie group? (upper beds): Point of Rocks, Wyoming. 
Cornus impressa Lx. Ann. Rept. U. S. Geol. and Geogr. Surv. Terr., 
p. 408, 1873 [1874]; Tert. Fl., p. 243, pi. xlii, f. 3, 1878. 
Cornus Emmonsii Ward. Bull. U. S. Geol. Surv., no. 37, p. 55, pi. xxvi, f. 2, 3, 
1887. 
Cornus incompletus Lx. Am. Jour. Sci., vol. xlv, p. 206, 1808. [Not 
afterwards referred to by its author.] 
Laramie group : Marshalls, Colorado. 
Cornus Kelloggii Lx. Mem. Mus. Comp. Zool., vol. vi, no. 2, p. 23, pi. 
vi, f. 3, 1878. 
Miocene: Chalk Bluffs, California. 
