ZAMITES. 



corresponds to that of V. 2123-/, etc. Veins numerous, but not 

 well marked. Towards the upper end of the rachis there are 

 elliptical scars marking the original places of insertion of detached 

 segments. If V. 2120 and V. 2898 be compared, the most striking 

 difference seems to be the less tapered and narrowed bases of the 

 pinnoe in the latter specimen. Ecclesbourne. Rufford Coll. 



V. 2227. PI. III. Fig. 4. Large specimen, with unusually 

 broad pinnae; length of rachis 38cm., width 1-2 cm. The 

 oblique attachment of the segments distinctly shown, also the 

 nature of the base and the position of the pinnoe on the axis. 

 Surface of the rachis marked with longitudinal striae ; about 

 1 mm. from each margin of the rachis there is a distinct longi- 

 tudinally running line. Pinnae long, narrow, and slightly curved ; 

 one row attached obliquely by tapering bases to the upper surface 

 of the frond axis, alternate in position. In the lower part of the 

 frond the pinnse have a length of about 19cm., and a breadth 

 of I'Scm. ; their distal ends are bluntly acuminate, as shown 

 in PI. III. Fig. 4. Very little, if any, indication of a basal 

 callosity on the segments. There is only a slight difference in 

 size between the upper and lower pinnae. Cf. V. 2820. Eccles- 

 bourne. Rufford Coll. 



V. 2820. A very similar specimen. Rachis 29cm. long; the 

 longest pinna between 17 and 18 cm. in length and 1 cm. broad. 

 Towards the upper end of the frond the pinnae are about 10 or 

 11cm. long; the apices are not shown, and therefore the actual 

 length can only be approximately measured ; breadth of these 

 pinnae about 8 mm. Ecclesbourne. Rufford Coll. 



V. 2125. Eachis 21 cm. long. The upper portion closely 

 resembles Dioonites alietinus as figured by Hosius and von Marck. 

 Ecclesbourne. Rufford Coll. 



V. 2128. Portion of a rachis of a large frond; the bases of 

 detached pinnaB well preserved, also traces of scars on the rachis. 

 Ecclesbourne. Rufford Coll. 



V. 2363. PI. III. Fig. 2. The chief feature in this specimen 

 is the very distinctly and gradually tapering terminations of the 

 few pinnae which are preserved. Compare the apex of one of 

 these pinnoe, with those of the two shown in PI. III. Fig. 5 



