252 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



5144. Pinus wardii Knowlton. Type. 



5152. Miocene (Tert.). Fossil Forest Ridge, Yellowstone Na- 



tional Park. 



Knowlton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 679. 



3746. Pinus sp.? Fontaine. 



Trinity (Low. Cret.). Glenrose, Texas. 



Fontaine, Proc. U. S. Nat. Mus. , XVI, 1893, p. 269, pi. 36, fig. 11. 



7630. Pinus sp. Knowlton. 



Payette (Miocene). Idaho City, Idaho. 



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

 p. 722, pi. 119, fig. 3. 



7594. Pinus sp. Knowlton. 



7595. Miocene (Tert.). Three miles southeast of Ashland, 



Oregon. 



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

 p. 39, pi. 1, figs. 3, 4. 



30073. Pinus sp.? Knowlton. 



30074. Eocene (Tert.). Kukak Bay, Alaska. 



Knowlton, Harriman Alaska Exped., IV, 1904, p. 151, pi. 23, fig. 2; 

 pi. 24, fig. 1. 



3378. Pinus sp.? Fontaine (seed). 



Potomac (Low. Cret.). Covington street, Baltimore, 

 Maryland. 

 Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 272, pi. 170, fig. 4. 



72. Pinus sp. Lesquereux (scale of cone). 



Green River (Tert.). Near Costello's Ranch, Florissant, 

 Colorado. 



Lesquereux, Rept. U. S. Geol. Surv. Terr., VII, Pt. II, 1878, p. 84, 

 pi. 7, fig. 32. 



301. Pisonia racemosa Lesquereux. Types. 



322. Laramie (Cret.). Black Buttes, Wyoming. 



Lesquereux, Ann. Rept. U. S. Geol. and Geogr. Surv. Terr., 1873 

 [1874], p. 400; Rept. U. S. Geol. Surv. Terr., VII, Pt. II, 1878, 

 p. 209, pi. 35, fig. 4- 



539 Pistia corrugata Lesquereux. Illustrated specimens, 



to Montana (Cret.). Point of Rocks, Wyoming. 



543- Lesquereux, Rept. U. S. Geol. Surv. Terr., VII, Pt. II, 1878, p. 103, 



pi. 61, figs. 1, 3-6, 11. 



3086S. Pityoxylon aldersoni Knowlton. Type. 



Miocene (Tert.). Head of Crystal Creek, Yellowstone Na- 

 tional Park. 



Knowlton, Mon. XXXII, Pt. II, 1899, p. 763, pis. 106, 109, 112, 113, 

 118, figs. 3, 4; pi. 119, fig. 2. 



30869. Pityoxylon amethystinum Knowlton. Type. 



Miocene (Tert.). Head of Crystal Creek, Yellowstone Na- 

 tional Park. 



Knowlton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 764, pis. 

 107, 108, 114, 115, 118, figs. 1, 2. 



