TYPE SPECIMENS OF FOSSIL PLANTS. 267 



Populus speciosa Ward. Types, 



to Fort Union (Tert.). Clear Creek, fifteen miles above Glen- 



4071. dive, Montana. 



Ward, Bull. No. 37, U. S. Geol. Surv., 1887, p. 20, pi. 5, figs. 4-7. 



4250. Populus speciosa Ward. Illustrated specimens. 



5125. Fort Union (Tert.). Yellowstone River, one-half mile 



below mouth of Elk Creek, Yellowstone National Park. 



Knowlton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 694, 

 pi. 84, fig. 3- 



220. Populus subrotundata Lesquereux. Illustrated specimen. 



221. Laramie? (Cret.). Rock Creek, Wyoming. 



Lesquereux, Rept. U. S. Geol. Surv. Terr., VII, Pt. 11, 1878, p. 173, 

 pi. 24, figs. 6, 8. 



222. Populus ungeri Lesquereux. Type. 



Denver? (Cret.). Golden, Colorado. 



Lesquereux, Rept. U. S. Geol. Surv. Terr., VII, Pt. II, 187S, p. 175, 

 pi. 24, fig. 5. 



4084. Populus whitei Ward. Type. 



Fort Union (Tert.). Burns's Ranch, left bank Yellowstone 

 River, Montana. 



Ward, Bull. No. 37, U. S. Geol. Surv., 1887, p. 22, pi. 8, fig. 4. 



4338. Populus xantholithensis Knowlton. Types. 



4339. Fort Union (Tert.). Top of bluff, Yellowstone River, one- 



half mile below mouth of Elk Creek, Yellowstone Na- 

 tional Park. 



Knowlton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 695, 

 pi. 85, figs. 1, 2. 



204. Populus zaddachi Heer. Illustrated specimens. 



Green River (Tert.). Green River Station, Wyoming. 



Lesquereux, Rept. U. S. Geol. Surv. Terr. VII, Pt. II, 1878, p. 176, 

 pi. 22, fig. 13. 



1687. Populus zaddachi Heer. Illustrated specimen. 



Green River (Tert.) Florissant, Colorado. 



Lesquereux, Rept. U. S. Geol. Surv. Terr., VIII, Pt. Ill, 18S3, p. 

 158, pi. 31, fig. 8. 



7578. Populus zaddachi ? Heer. Illustrated specimen. 



Miocene (Tert. ) Left bank of the Columbia River, near the 

 mouth of Moffats Creek, Oregon. 



Knowlton, Twentieth Ann. Rept. U. S. Geol. Surv., Pt. Ill, 1900, 

 p. 40, pi. 1, fig. 11. 



7647. Populus sp. Knowlton. 



Montana (Cret.). North Fork Dutton Creek, Albany 

 County, Wyoming. 



Knowlton, Bull. No. 163, U. S. Geol. Surv., 1900, p. 37, pi. 7, fig. 5. 



