OTOZAMITES. 69 



V. 2123. Here again we have a specimen, imperfectly 

 preserved, which it is difficult to assign to a perfectly satisfactory 

 position. The pinnae are long and narrow, and agree with those 

 of V. 2122, etc. ; but on the other hand this form is nearer to 

 that of Zamites tenuinerwis, Font. The bases of the pinnae are 

 less distinctly auriculate, and in some there is a wrinkling of the 

 leaf substance near the point of attachment to the frond axis. 

 Cf. Encephalartos Lehmanni. Ecclesbourne. Rufford Coll. 



Other specimens referred to this species : V. 1069, V. 2126, 

 V. 2364, V. 29126, V. 3160 (a good example of 0. Klipsteinii 

 var. longifolia). 



Otozamites sp. Cf. O. Klipsteinii (Dunk.). 



V. 2734. PI. II. Fig. 4. 



In PI. II. Fig. 4 is represented one of two specimens, of which 

 one is the counterpart of the other. The rachis has a length of 

 12 - 5 cm., and bears at its upper end six imbricate and obliquely 

 attached pinnae. The base of the rachis is swollen, and shows 

 a clean cut surface by which it was attached to the parent stem ; 

 just above the base there are traces of filiform appendages, possibly 

 scale or hair structures, such as occur on the lower portions of many 

 recent cycadean fronds. The bases of the alternately placed pinnae 

 fit in between one another, and are attached to the upper surface 

 of the rachis. Saporta 1 has figured a very similar specimen as 

 Otozamites sp., in which the base of the petiole shows two fairly 

 large leaf-like or stipular (?) structures. The French Jurassic 

 specimen closely resembles 0. Beanii (L. and H.), but it is no 

 doubt better to follow Saporta, and retain it as a fragment too 

 small to be accurately determined. Another somewhat analogous 

 form is figured by the same author as Otozamites marginatus-; but 

 in dealing with portions of such partially developed fronds, any 

 attempt to assign them to specific forms founded on nature fronds 

 must be attended with no little difficulty and risk. Possibly this 



1 (A. 2), Pal. Frani;. vol. ii. pi. vi. figs. 3 and 4. 



2 Ibid. pi. cix. fig. 1. 



