150 MR. A. B. RENDLE’S REVISION 
Burtinia cocoides, Unger, Synops. p. 187, Gen. et Sp. p. 339; Massa- 
longo, Synops. p. 206 ; Ettingshausen, in Abh. Geol. Reichsanst. (1852) i. 
Abth. 3, nr. 1, p. 9. 
N. giganteus, Bowerb. Foss. Fr. Lond. Clay, p. 22, t. vi. f. 1; Unger, 
Gen. et Sp. p. 329. 
N. turgidus, Bowerb. partim, J. c. p. 21, t. v. f. 1; Unger, 1. ¢. 
N. Bowerbankii, Ettingshausen, partim, l. c. p. 8, et in Sitzungsb. Akad. 
Wiss. Wien, viii. (1852) p. 491. 
Nipa Burtini, Ettingsh. partim, in Proc. Roy. Soc. xxix. (1879) p. 393. 
Paleokeura Pellegriniana, Massal. Plant. Foss. Nov. p. 15, et Nuova 
Gen. (with four plates) ; Mesch. et Squin. Fl. Tert. Ital. p. 161. 
Drupa magna, semipedalis, obovata, seepius late obovata, vel fere 
suborbicularis, jam quadrangularis, faciebus duabus oppositis 
latis subcomplanatis vel convexis, duabus angustis sejunctis, jam 
faciebus tribus subequalibus, vel una majore; apice obtuso in” 
terdum umbonato; basi truncata; angulis prominentibus sepe 
alatis; epicarpio levi; mesocarpio fibroso, hoc in faciebus vix 
unilinea, angulis autem multo crassiore ; endocarpio, quum rarius 
apparet, duro, fere unilineo. 
Size 53-7 inches long, 4-6 inches broad, 14-4 inches thick. 
There is often a marked depression below the apex, and the 
prominent angles are often flattened into a thin broad wing. 
Many of the Belgian and the Italian specimens are much bored 
by Teredinex. The cast of the interior, which takes the place of 
the seed, varies with the external ‘shape of the drupe, which it 
almost equals in breadth and thickness, being more or less irre- 
gularly oval or oblate with three or more, usually rounded, angles. 
On the surface are often traces of the irregular fibrous coat like 
that of recent seeds. 
Localities. Sheppey (London Clay). Near Selsea and West 
Wittering, Sussex. Hengistbury Head, Hants (Bracklesham). 
Woluwe and Schaerbeek, near Brussels (Middle Eocene). 
Breonio, Verona (Eocene). 
The Sheppey fruits are strongly pyritized, those from the south 
coast carbonized, and those from Belgium often enclosed in 
concretionary nodules. 
Nreapires Parxrnsonts, Bowerb. l. c. p. 16, t.iv.; Brongniart, 
Tableau, p. 88 ; Unger, Gen. et Sp. p. 328 ; Lyell, in Quart. Journ. 
Geol. Soc. viii. (1852) p. 346, t. 19. figs. 5 & 6. (Pl. VII. 
figs. B, C.) 
A species of Almond, Douglas, Dissert. on Antiquity of the Earth 
(London, 1785), p. 25, t. v. 
