152 PHYILITES. 



CONIFERALES ? 

 ? NAGEIOPSIS, sp. 

 [Pecopteris diver sa, Phillips. J 



[Geol. Oxford, p. 168, Diag. xxviii. fig. 1.] 



In. Phillips' Geology of Oxford a specimen from Stonesfield, now 

 in the Oxford Museum, is figured as Pecopteris iiversa. An 

 examination of the fossil leads me to regard it as an imperfectly 

 preserved coniferous shoot, possihly an example of the genus 

 Nageiopsis. This genus has been employed by Fontaine ^ as a name 

 for certaia vegetative shoots from the Potomac beds of North America 

 ■which bear a resemblance to those of recent species of the genus 

 Podocarpus. The specimens in the Oxford Museum are, however, 

 too obscure to determine ; it is probable they belong to some member 

 of the Coniferae, possibly to Nageiopsis, and cannot be retained 

 under Phillips' designation. 



41,386. An obscure fragment which may be specifically identical 

 with the larger specimen figured by PhUHps. Morris Coll. 



LEAVES OF DOUBTFUL SYSTEMATIC POSITION. 



Phyllites, sp. 



(PL XL Figs. 5-6.) 



The two drawings reproduced in PL XL Figs. 5-6 represent two 

 impressions of a leaf from Stonesfield. The fossil occurs as a brown 

 stain, on a fine-grained sandstone ; the impression shown in Fig. 5 

 is that of a leaf the lamina of which is 3"7 cm. long and 2'5 cm. 

 broad, with a portion of petiole. The preservation is not sufS.ciently 

 good to afford any indication of the finer veins, but three main 

 veins are clearly shown in both Figs. 5 and 6 ; the vascular tissue 

 branches at the summit of the leaf-stalk into three approximately 

 equal ribs, and from the rib shown on the right-hand side of the 

 lamina in Fig. 6 two short branches are given off towards the edge 

 of the leaf. 



1 Fontaine (89) ; see also Seward (00), p. 288. 



