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2 records found in the Index Nominum Genericorum database.

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Diacritical Conversion

Sewardia R. Zeiller, Éléments Paléobot. 232. 1900.
T.: non designatus
Substitute name for Withamia A. C. Seward 1895, non Unger 1842.
Frond fragments; Jurassic and Wealden; France and England.
FOSSIL-GYMNOSPERMAE-CYCADALES (104) 9 Feb 1996

Diacritical Conversion

Withamia A. C. Seward, Cat. Mesozoic Plants Dept. Geol. Brit. Mus., Wealden Flora 2: 174. 1895 (post 16 Nov) (non Unger 1842).
T.: W. saportae A. C. Seward, nom. illeg. (Cycadorachis armata G. Saporta)
Sewardia R. Zeiller 1900
In the legends of plates 2 and 5 Seward made the correct combination W. armata.
Frond fragments; Jurassic and Wealden; France and England.
FOSSIL-GYMNOSPERMAE-CYCADALES (104) 9 Feb 1996

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