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Total: 7

genus valid

Genus Dicotylophyllum Saporta ex Ward Science, New Series, 1(13): 344. 29 Mar 1895

genus valid

Genus Feistmantelia Ward Rep. (Annual) U.S. Geol. Surv., 19, (2): 693. Nov 1899

genus valid

Genus Liriodendropsis Newb. ex Ward Rep. (Annual) U.S. Geol. Surv., 15(1895) 373. May 1896

genus valid

Genus Proteophyllum Velen. ex Ward Science, New Series, 1(13): 345. 29 Mar 1895

genus unavailable

Genus Protoplatanus Ward Bull. U.S. Geol. Surv., (37): 63. Jul 1887

genus valid

Genus Xantholithes Ward ex E.W. Berry Mem. Canada Geol. Surv., (182): 65. 1935

genus unavailable

Genus Xantholithus Ward Glimpses Cosm., 4: 150. 2 Dec 1915

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