Species

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Total: 259

species valid

Prosopis pliocenica Axelrod Publ. Carnegie Inst. Washington, 476: 177. 28 May 1937

species valid

Potamogeton verdianus Axelrod Univ. Calif. Publ. Geol. Sci., 34(2): 131. 23 Dec 1958

species valid

Populus voyana R.W. Chaney, Axelrod Publ. Carnegie Inst. Washington, (617): 152. 20 Oct 1959

species valid

Populus subwashoensis Axelrod Univ. Calif. Publ. Geol. Sci., 33: 284. 31 Dec 1956

species valid

Populus sonorensis Axelrod Publ. Carnegie Inst. Washington, 516: 94. 19 Sep 1939

species valid

Populus pliotremuloides Axelrod Publ. Carnegie Inst. Washington, 476: 169. 28 May 1937

species valid

Populus payettensis (Knowlt.) Axelrod Publ. Carnegie Inst. Washington, 553: 253. 15 Jun 1944

species valid

Populus parcedentata (Lesq.) Axelrod Publ. Carnegie Inst. Washington, 553: 129. 15 Jun 1944

species valid

Populus nevadensis (Knowlt.) Axelrod J. Washington Acad. Sci., 30(4): 171. 15 Apr 1940

species valid

Polypodium deweyense Axelrod Univ. Calif. Publ. Geol. Sci., 142: 31. Jan 1998

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