Species

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Total: 712

species valid

Dryopteris angustipinnata (Fontaine) Knowlt. Bull. U.S. Geol. Surv., (152): 91. Oct 1898

species valid

Dryophyllum longipetiolatum Knowlt. Monogr. U.S. Geol. Surv., 32(2): 710. Oct 1899

species valid

Dryandroides lanceolata Knowlt. Profess. Pap. U.S. Geol. Surv., 108(F): 89. 22 Aug 1917

species valid

Dombeyopsis sedaliensis Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 126. 19 Jun 1930

species valid

Dombeyopsis magnifica Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 125. 19 Jun 1930

species valid

Diplazium crossii (Knowlt.) Knowlt. Profess. Pap. U.S. Geol. Surv., (155): 23. 19 Jun 1930

species valid

Diospyros nebraskana Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 239. 13 Feb 1920

species valid

Diospyros microcalyx Knowlt. Profess. Pap. U.S. Geol. Surv., 140(A): 46. 19 Feb 1926

species valid

Diospyros lesquereuxii Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 239. 13 Feb 1920

species valid

Diospyros lamarensis Knowlt. Monogr. U.S. Geol. Surv., 32(2): 751. Oct 1899

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