Species

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Total: 461

species unavailable

Piper concavum Hollick Profess. Pap. U.S. Geol. Surv., 182: 59. 6 Oct 1936

species valid

Piper chapinii Hollick Profess. Pap. U.S. Geol. Surv., 182: 60. 6 Oct 1936

species valid

Piper arcuatile Hollick Profess. Pap. U.S. Geol. Surv., (159): 62. 30 Jul 1930

species valid

Pilocarpus prepinnatifolius Hollick, E.W. Berry Johns Hopkins Univ. Stud. Geol., (5): 71. Jun 1924

species valid

Phyllocladites dubiosus Hollick Profess. Pap. U.S. Geol. Surv., (159): 52. 30 Jul 1930

species valid

Phyllites marahiensis Hollick, E.W. Berry Johns Hopkins Univ. Stud. Geol., (5): 110. Jun 1924

species valid

Phyllites cyclophyllus (Lesq.) Hollick Bull. Torrey Bot. Club, 21(6): 256. 20 Jun 1894

species valid

Phyllites crassus Hollick Profess. Pap. U.S. Geol. Surv., (159): 115. 30 Jul 1930

species valid

Phyllites bahianus Hollick, E.W. Berry Johns Hopkins Univ. Stud. Geol., (5): 109. Jun 1924

species valid

Phegopteris alaskensis Hollick Profess. Pap. U.S. Geol. Surv., (159): 38. 30 Jul 1930

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