TAXITES. 301 



size and habit of the shoots, clearly demonstrate that Leckenby's 

 plant is a Conifer and not a Cycad. On the typc-speeimen of 

 Cf/cadites zamioides (Geological Museum, Cambridge) Kathorst has 

 written "a Conifer of the genus Palissya." Another specimen in 

 the Leckenby Collection is labelled in Bean's handwriting Zamia 

 aiujustifolia. 



The few fragments of this species that arc known are too small 

 to enable us to make any suggestions as to relationship with 

 recent types. It is probable that Taxites zamioides is specificallj- 

 identical with some of the Coniferous branches described by 

 Fontaine from the Potomac beds under the generic name 

 Cejj/ialotaxopsis ; a term applied to twigs with distichous leaves 

 having the habit of species of such recent genera as Cephalotaxns, 

 Torre;/ a, and Tuxus} 



39,288. PL X. Fig. 5. 



A slender axis bearing crowded, spirally disposed leaves, which 

 have assumed a distichous arrangement. The individual leaves 

 thow a fairly clear midrib ; they are sharply pointed distally, and 

 decrease rapidly in breadth at the base ; from 2-3 cm. in length. 



Scarborough. Bean Coll. 



39,202. A fragment with fewer and more scattered leaves. 

 Cf. Phillips' fig. 24, pi. vii. 



Scarborough. Bean Coll. 



1 Fontaine (S!);, p. 235. 



