Species

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Total: 712

species valid

Cupressinoxylon elongatum Knowlt. Proc. U.S. Natl. Mus., 11(1): 7. 8 Nov 1888

species valid

Cupressinoxylon glasgowii Knowlt. Proc. U.S. Natl. Mus., 11(1): 6. 8 Nov 1888

species valid

Cyatheites nebraskanus (Lesq.) Knowlt. Bull. U.S. Geol. Surv., (152): 81. Oct 1898

species unavailable

Cyperacites borealis (Heer) Knowlt. Bull. U.S. Geol. Surv., (152): 83. Oct 1898

species valid

Cyperacites giganteus Knowlt. Monogr. U.S. Geol. Surv., 32(2): 684. Oct 1899

species valid

Cyperacites haydenii (Lesq.) Knowlt. Bull. U.S. Geol. Surv., (152): 83. Oct 1898

species valid

Dadoxylon angustum (Felix) Knowlt. Proc. U.S. Natl. Mus., 45(1994): 610. 21 Jun 1913

species unavailable

Dadoxylon antiquum (Witham) Knowlt. Proc. U.S. Natl. Mus., 45(1994): 610. 21 Jun 1913

species unavailable

Dadoxylon biarmicum (S.S. Kutorga) Knowlt. Proc. U.S. Natl. Mus., 45(1994): 613. 21 Jun 1913

species unavailable

Dadoxylon cupreum (Goepp.) Knowlt. Proc. U.S. Natl. Mus., 45(1994): 613. 21 Jun 1913

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