Pistia wilcoxensis E.W.Berry

Plant Fossil Names Registry Number: PFN001928

Act LSID: urn:lsid:plantfossilnames.org:act:1928

Author: E. W. Berry

Rank: species

Reference: Berry, E. W. (1916): The Lower Eocene floras of Southeastern North America. – Professional Papers, United States Geological Survey 91: 1–481., link

Page of description: 175

Illustrations or figures: pl. CXIII, fig. 4


Holotype USNM P 35508, National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States
Figures: pl. CXIII, fig. 4.

Note: Berry (1916: US Geol. Surv. Prof. Pap., 91: 175) stated tha he had only one specimen (and its counterpart) of this new species, which is housed in United States National Museum.

Inventory number from Smithonian on-line database (https://collections.nmnh.si.edu/search/paleo/#new-search).

Original diagnosis/description

Leaves elliptical in outline, with a broadly rounded or slightly truncated apex and a broadly rounded base. Petiole missing. Length about 4.25 cm. Maximum width about 3.6 cm. Margins entire. Texture of considerable consistency. Venation entirely of a single caliber, fasciculate-flabellate, forming by repeated and somewhat irregular cross branches an open polygonal mesh


Paleogene, Eocene
Wilcox Group


United States
De Soto Parish, Louisiana, 4.5 miles southeast of Naborton

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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