GYMNOSPERMtE. 



67 



one and a half 



" elongated, sub-cylindrical, swollen towards the base ; five inches Ion 

 broad on the upper half. Scales thickened at the apex, with 

 a rhomboidal obtusely spinous apophysis." Fig. 8, Plate XIII, 

 represents a rather obscure specimen from the Fisher collection 

 in the Woodwardian Museum, Cambridge, and shows the apo- 

 physes to be rhomboidal, transversely carinated, and umbonate ; 

 it measures about fifteen centiuietres in length, by seven or eight 

 centimetres across, having at least ten scales to a whorl. When 

 redescribing Dixon's specimen, Mr. Carruthers remarked that 

 " on the left side, and at the base, the cone has been abraded, 

 the apices being lost, so that in estimating the form of the 

 perfect cone allowance must be made for the missing parts. 

 It is obvious that, when these scales were perfect, the diameter 

 of the cone must have been considerably greater at the base 

 than is shown in the figure." It is difficult, however, even 

 making full allowance for their imperfect condition, to reconcile 

 the very long cylindrical form reproduced in the woodcut Fig. 

 27, with the pyramidal outline of Fig. 8, PI. XIII. 



A smaller and better-preserved specimen, from the Wood- 

 wardian Museum, PI. XIII, figs. 1 and 3, represents almost the 

 entire cone, with a length of eighty-five millimetres, and a breadth 

 of forty millimetres, composed of about 112 scales. The form 

 is ovate, but a slight allowance has to be made for compression. 

 The apophyses of the scales are very similar to those of P. 

 syhestris ; the largest measures twelve millimetres by eight 

 milhmetres. Another specimen, in the British Museum, labelled 

 from the Isle of Wight, but which must apparently have been 

 obtained either at Highcliff or Bracklesham, has even smaller 

 apophyses, almost suggesting another species, to which the small axis from Highcliff, 

 PI. XIII, fig. 5, may also have belonged. 



The larger cone, PI. XIII, fig. 4, obtained by Mr. J. A'Court Smith, from Gurnet 

 Bay, near Cowes, presents no characters which allow it to be separated specifically from 

 Pi7ius JDixoni, of the Bracklesham Beds. The scales were more widely dehiscent than 

 in the other examples, and their apophyses are in every case abraded, except towards the 

 top of the cone, where they are almost concealed by pyrites. When visible in this and 

 in a second specimen, however, they are seen to be quite similar to those above described. 

 What remains of the cone is six inches long, nearly cylindrical, somewhat pointed at 

 the apex, obtusely rounded at the base, and composed of fourteen whorls of about ten 

 scales. 



It is, perhaps, worth remarking that all the Bracklesham and the two Gurnet Bay 



ri&. 27.— -P. Dlxoui ; Brac- 

 klesham. Dixon's 'Geol. Sussex.' 



