694 MR. W. CARRUTHERS ON FOSSIL CYCADEAN STEMS 



crowded, slightly overlapping, patent, veins parallel, divaricating into the free mar 

 <*ins at the base of the segment. Segments of the female spadix narrow, elongate. 



-» & 



The female spadix associated with the leaves of this species is intermediate in size 

 between that of W. Gigas and of W. Pecten, and the segments are longer and narrower 

 than in either. 'Hie species has been confounded with a plant from the Stonesfield Slate 

 ( Palceozamia j)cctinata> Morris), which is certainly different. 



From lie Inferior Oolite at Saltwick, Yorkshire. [British Museum.] 



W. I'kcten, Carr. 



hil 



1S37 



Morris. Ann. Nat 



1818. Palceozamia pecten, Morris, Cat. Brit. Foss. p. 15. 



1861. Dionites pecten, Miq. Prodr. Syst. Cyc. p. 31. 



1838. Odontopteris Bucklandi, Sternb. (non Brong.) Flora, fasc. v. & vi. p. 79, pi. xxiii. fig. 2. 



1 838. Zamites Bucklandi, Presl, Sternberg, Flora, p. 197. 



Leaves linear, attenuated above and below, segments numerous, oblong, obtuse, sub- 



distant, divergent, veins parallel, slightly divaricating into the small free margins at 

 the base. Segments of the female spadix broad and short. 



Mr. Leekrnby has figured 1 the female spadix, and in his collection there is a reticulate 

 •truet ure which Prof. Williamson refers to the male inflorescence. Specimens of both 

 organisms exist in the British Museum, associated with the leaves of this species, as well 

 as a number of separate triangular bodies which I cannot distinguish from the segments 



wlAXOXX XiWXXX U1IV «V & 



of the spadix separated at the base of the free portion, and bearing on the surface of their 

 broad base two seeds similar in size and form to those figured by Prof. Williamson in 

 connexion with W. Gigas. 



From the Inferior Oolite at Gristhorpe Bav, Yorkshire. 



VI. Bexnettites, g 



» 



ZVtftft ovoid, in transverse section elliptical, covered with the somewhat long permanent bases of the 



W *"V 4- * ,-■* I «-'» *~m I «./ _ _ 1 / _ J 111 A . . «■ 



Wood 



Fruits 



petioles. Medulla entirely cellular, with numerous gum-canals. 



roptod cylinder of striated tissue everywhere penetrated by medullary rays. 



dary axis, not protruding beyond the bases of the petioles. 



Fragmentary specimens of this genus have been figured and described by Mantell as 



1-rtK.r,. f th e stem of BucMandia anomala; and Corda has published drawings and de- 



-.pttons of a fragment which should probably be referred here, under the name of 



Zamtes Bucklandi The only other published notice is contained in a short paragraph 



n the Proceedings of this Society by Robert Brown. In 1851 he exhibited to the Society 



i series of specimens of recent and fossil Cycade<e, among them one from the Isle of 



^•ti 2? the > namG °* Ca4Ue * ***<*-. In the short abstract in the 

 rratu , of the Proceedings (1851, p. 130), Mr. Brown is said to have pointed out that 



Quart 



