The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2025

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Total: 70675

species valid

Dryopteris nigricans (Lesq.) Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 248. 13 Feb 1920

species valid

Sphenopteris nigricans Lesq. Rep. (Annual) U.S. Geol. Geogr. Surv. Territ., 1873, 7: 394. 1874

species unavailable

Sphenopteris membranacea Lesq. Rep. (Annual) U.S. Geol. Geogr. Surv. Territ., 1873, 7: 394. 1874

species valid

Goniopteris goldiana Lesq. Rept. U.S. Geol. Surv. Territ., 7: 56. Jan - Mar 1878

species valid

Asplenium subsimplex (Lesq.) Knowlt. Bull. U.S. Geol. Surv., (152): 45. Oct 1898

species valid

Pteris subsimplex Lesq. Rep. (Annual) U.S. Geol. Geogr. Surv. Territ., 1873, 7: 392. 1874

species valid

Osmunda affinis Lesq. Rept. U.S. Geol. Surv. Territ., 7: 60. Jan - Mar 1878

species unavailable

Pteris affinis Lesq. Rep. (Annual) U.S. Geol. Geogr. Surv. Territ., 1873, 7: 392. 1874

species valid

Dryopteris lakesii (Lesq.) Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 18. 19 Jun 1930

species valid

Sphenopteris lakesii Lesq. Rept. U.S. Geol. Surv. Territ., 7: 49. Jan - Mar 1878