OF LOWER GREEXSASD PL.VNTS. 123 



Pinostrobus sussexiensis (Mantell), comb. nov. 

 [Plate X, figs. 2, 3, & 4; Plate XI, fig. 3; text-figs. 30, 31.] 



1843. Zamia Sussexiensis, Mantel], Proc. Geol. Soc., vol. 4, p. 34. 



1843. Zamites Sussexiensis, Morris, Cat. Brit. Fossils, p. 25. 



1844. Zamiottrolus sussexiensis, Goeppert, Uebers. v. Schles. 

 Gesellsch., p. 129. 



1845. Zamiostrobus sussexiensis, Goeppert, in linger, Synop. Plant- 

 arum Foss. , p. 162. 



1846. Zamia Sussexiensis, Mantell, Quart. Journ. Geol. Soc., vol. 2, 

 p. 51, pi. ii, fig. 1. 



1860. Pinites Sussexiensis, Carruthers, Geol. Mag., vol. 3, p. 541, 



pi. xx, figs. 5, 6. 

 1867. Pinites Sussexiensis, Carruther^, Journ. Bat., vol. 5, p. 13, 



pi. Iviii, figs. 5, 6 [same plate as Geol. Mag., 1866]. 

 1870. Pinites Sussexiensis, Schiinper, Traite" Paleont., vol. 2, p. 296. 

 1886. Pinites Sussexiensis, Gardner, Rep. Brit. Assoc., 1885, p. 245. 



Diagnosis. That given by Carruthers, who was the first to 

 recognise the true nature of the species, is as follows : 

 " Cone oblong, truncate at both ends ; axis slender ; scales 

 leaving axis at a very acute angle, bearing two ovate seeds in 

 a hollow very near the base ; scale in transverse section tri- 

 angular." 



To this should now be added : Cone 14 cm. long, by nearly 



cm. in diameter, exposed area of overlapping scales, about 

 2 cm. in tangential and 1*3 cm. in vertical extent, border of 

 scale curved and thickened. Seeds 4 mm. in diameter and 



1 cm. long ; stone-layer corrugated ; wings broad and stout. 

 Irregular double series of bundles in cone-scales oriented in 

 various directions. 



HORIZON. Lower Greensand, very near junction with Gault. 



LOCALITY. Selmeston, Sussex. 



TYPE. V. 3349, and slides V. 3349 a-c cut in 1912 ; 

 British Museum (Nat. Hist.). 



FINDER. Dr. G. A. Mantell, about 1841. 



DESCRIPTION. The type and only known specimen of this 

 species is a cone 14 cm. long by about 5 cm. in its greatest 

 diameter. When found by Mantell it was evidently complete, 

 for there are in the Museum now two casts of it which resemble 

 Mantell's original figure (Mantell, 1846, pi. ii, fig. 1). Mantell 

 himself never cut a section of it, for he says (p. 51): "The 



