ON THE FOSSIL PLANTS OF THE TERTIARY AND SECONDARY BEDS. 245 



It resembles Cedrus Lennieri, ' Sap. Veg. foss. de la Craie inferieure des 

 Environs du Havre,' Mem. de la Soc. Oeol. de Normandie, 1877, but is not 

 apparently tbe same species. 



Pinites cylindroides, sp. nov. Lower Greensand, Potton. Figs. 2 and 2a. 



This is an almost perfectly cylindrical specimen, being veiy sligbtly 

 thickened towards the base, 7 centimetres in length and 22 millim. in diame- 

 ter, composed of about 96 scales, arranged in 12 rows from left to right, and 

 8 rows from right to left, the arrangement thus being -j^. The scales are 

 short and at right angles to the axis, with a smooth flat half-moon-shaped 

 apophysis or scale-head, now gaping, but evidently imbricated before the 

 seeds were shed. The scales become very small towards the base. The 

 summit is abraded, exposing the end of a somewhat slender axis, fig. 2a. 

 Certain grooved lines on the sandy matrix between the scales show that 

 the cone was furnished with foliaceous bracts, and the marks of a boring 

 insect are visible. The specimen, which is quite distinct from any other 

 fossil or recent cone, is singularly elongated and cylindrical, scarcely 

 tapering at all from the base upward. It is fortunately in excellent con- 

 dition, certainly not derived from any older bed, like so many of the 

 Potton fossils, and is well cared for in the Woodwardian Museum. 



Pinites Pottoniensis, sp. nov. Pig. 3. Lower Greensand, Potton. 



The fragment figured, though much mutilated, fortunately shows the 

 characteristically winged seeds of Pitius in the most perfect manner, 

 entirely removing any lingering doubt as to the occurrence of represen- 

 tatives of true Pinus as low down as the Neocomian. The scales were set 

 at an acute angle with slightly thickened recurved apophyses, the form of 

 which cannot clearly be made out, though they appear to have been 

 narrow, keeled, and mucronate. It nearly resembles a type very common 

 in the Eocene, and is of great interest in many ways. It also is in the 

 Woodwardian Museum, and was obtained from the same formation. 



The specimen, fig. 7, evidently represents a third species from the 

 Wealden of Brook, with scales very closely resembling a common Barton 

 and Bracklesham type, but its fragmentary condition scarcely renders it 

 advisable to attach any specific name to it. 



The accompanying list comprises all the British Cretaceous Coniferae 

 previously known, up to the present date, though there ig no doubt that 

 many new and undescribed forms must exist in collections. 



List of British Cretaceous Goniferoe 'previously described. 



Pinites Fittoni, Carr., Pnrbeck, 'A Cone,' Pitton, ' Geol. Trans.' 2nd 

 «er. vol. iv. p. 280, pi. xxii. fig. 9. Dammarites, ' Ung. G. et spec. Plant, 

 foss.' p. 384. Pinites, ' Geol. Mag.' vol. iii. p. 543. 



P. Mantellii, Carr., ' Geol. I. of W.' 2nd ed. p. 452, 3rd ed. p. 337, 

 pi. xlii. ; and Carr. ' Gym. Fruits,' ' Geol. Mag.' vol. iii. p. 543, pi. xxi. 

 fig. 3, Tilgate. 



P. patens, Carr. id. p. 543, pi. xxi. fig. 4, Tilgate. 



P. Bunheri, Carr. id. p. 542, pi. xxi. figs. 1, 2, Brook. Abietites, Mant. 

 " Geol. I. of Wight,' 2nd ed. p. 542. 



P. Sussexsiensis, Carr. Zamia, Mant. ' Quart. Journ. Geol. Soc' vol. ii. 

 p. 61, pi. ii. fig. 1 ; Zamites, Morris Cat. ; Zamiostrobus, Goepp. ' Ueber 

 Schless. Gesellsch.' 1844, p. 129; Pinites, Carr. 'Geol. Mag.' vol. iii. 

 p. 541. pi. XX. figs. 5, 6. 



