Species

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Total: 459

species valid

Pseudoprotophyllum magnum Hollick Profess. Pap. U.S. Geol. Surv., (159): 95. 30 Jul 1930

species valid

Pseudoprotophyllum venustum Hollick Profess. Pap. U.S. Geol. Surv., (159): 92. 30 Jul 1930

species valid

Pseudoprotophyllum viburnifolium Hollick Profess. Pap. U.S. Geol. Surv., (159): 92. 30 Jul 1930

species valid

Psidium cuneatifolium Hollick, E.W. Berry Johns Hopkins Univ. Stud. Geol., (5): 94. Jun 1924

species unavailable

Pteris inaequilateralis Hollick Profess. Pap. U.S. Geol. Surv., 182: 38. 6 Oct 1936

species unavailable

Pteris nitida Hollick Profess. Pap. U.S. Geol. Surv., (159): 39. 30 Jul 1930

species valid

Pterocarya septentrionalis Hollick Profess. Pap. U.S. Geol. Surv., 182: 84. 6 Oct 1936

species valid

Pterophyllum validum Hollick Profess. Pap. U.S. Geol. Surv., (159): 45. 30 Jul 1930

species valid

Pterospermites auriculicordatus Hollick Profess. Pap. U.S. Geol. Surv., 182: 151. 6 Oct 1936

species valid

Pterospermites conjuctivus Hollick Profess. Pap. U.S. Geol. Surv., 182: 152. 6 Oct 1936

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