TYPE SPECIMENS OF FOSSIL PLANTS. 119 



8481. Betula heteromorpha Knowlton. Types. 



8482. Upper Eocene (Tert.). Bridge Creek, Crook County, 



Oregon. 



Knowlton, Mon. XXXII. Ft. II, U.S. Geol. Surv., 1899, p. 698; Bull. 

 No. 204, U. S. Geol. Surv., 1902, p. 39, pi. 3, figs. 6, 7. 



4350. Betula iddingsi Knowlton. Types. 



4353- Fort Union (Tert. ). Hill above L,ost Creek, bed No. 2, and 



5086. Yellowstone River, one-half mile below the mouth of 



5164. Elk Creek, Yellowstone National Park. 



Knowlton, Mon. XXXII, Ft. II, U. S. Geol. vSurv., 1899, p. 698, 

 pi. 86, figs. 4, 5. 



8567. Betula nigra Einnseus. Types, 



8568. Interglacial (Pleistocene). Morgantown, West Virginia. 



8588. Knowlton in I. C. White, Amer. Geol., XVIII, 1896, p. 371. 



8589. 



5365. Betula prisca Etting.shausen. Illustrated .specimen. 



Fort Union (Tert.). Seven Mile Creek, below Glendive, 

 Montana. 

 Ward, Bull. No. 37, U. vS. Geol. Surv., 1S87, p. 31, pi. 14, fig. 2. 



161. Betula stevensoni Eesquereux. Type. 

 i6ia. Laramie? (Cret.). Evanston, Wyoming. 



162. Lesquereux, Sixth Ann. Kept. U. S. Geol. Surv. Terr., 1871 [1872], 

 162a. p. 293; Rept. U. S. Geol. Surv. Terr., VII, Ft. II, I878, p. 139, 



pi. iS, figs. 1-5. 



159. Betula stevensoni Le.squereux. See Alnus americana, Betula 



160. goepperti, and B. caudata. 



1 67 1. Betula truncata Lesquereux. Types. 



1742. Green River (Tert.). Florissant, Colorado. 



Lesquereux, Rept. U. S. Geol. Surv. Terr., VIII, Ft. Ill, 1883, p. 

 150, pi. 28, figs. 7, 8. 



156. Betula vogdesii Lesquereux. Types. 



157. Laramie? (Cret.). Fort Fetterman, Wyoming. 



Lesquereux Ann. Rept. U. S. Geol. and Geogr. vSurv. Terr., 1874 

 [1876], p. 312; Rept. U. S. Geol. Surv. Terr., VII, Ft. II, 1878, 

 p. 137, pi. 17, figs. 18, 19. 



30076. Betula sp. Knowlton. 



Eocene (Tert.). Kukak Bay, Ala.ska. 



Knowlton, Harrinian Alaska Exped., IV, 1904, p. 153, pi. 24, fig. 2. 



8299. Betula .sp. Knowlton (fruit of). 



Payette (Miocene). Two miles southeast of Marsli po.st- 

 office, Boise County, Idaho. 



Knowlton, Eighteenth Ann. Rept. U. S. Geol. Surv., Ft. Ill, 1898, 

 p. 727, pi. 99, fig. 9. 



2716. Betulites populifolius Lesquereux. Type. 



Dakota (Cret.). Near Fort Marker, Kansas. 



Lesquereux, Mon. XVII, U. S. Geol. Surv., 1892, p. 64, pi. 6, figs, i, 2. 



