Species

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Total: 709

species valid

Ampelophyllites ovatus (Lesq.) Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 67. 13 Feb 1920

species valid

Andromeda dakotana Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 70. 13 Feb 1920

species valid

Anemia elongata (Newb.) Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 74. 13 Feb 1920

species valid

Anemia fremontii Knowlt. Profess. Pap. U.S. Geol. Surv., 108(F): 84. 22 Aug 1917

species valid

Anemia hesperia Knowlt. Profess. Pap. U.S. Geol. Surv., 98(S): 332. 18 Dec 1916

species unavailable

Anemia lanceolata Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 29. 19 Jun 1930

species valid

Anemia mosbyensis Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 28. 19 Jun 1930

species valid

Annona coloradensis Knowlt. 143.

species valid

Aralia dakotana Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 82. 13 Feb 1920

species valid

Aralia fontainei Knowlt. Bull. U.S. Geol. Surv., (152): 37. Oct 1898

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