SAGENOPTEEIS. 167 



common petiole, and occur spread out on the shale at a wider 

 angle from one another than in the example shown in Text-fig. 24. 

 The right-hand leaflet shows the tapering apical portion and the 

 characteristic curvature of the nan-owed distal end. 



Gristhorpe Bay. Presented ly Dr. Murray. 



39,220. PI. XVIII. Fig. 2. Sagenopteris PJiillipsi, var. cuneata. 



This example, which agrees closely with those figured by Lindley & 

 Hutton as Otopteris cuneata, 1 consists of a stalk 4mm. wide, with 

 a thick median portion and thin lateral wings, bearing two cuneiform 

 segments. The segments have a fairly well-marked midrib, dividing 

 the lamina into unequal portions ; the secondary veins exhibit the 

 same kind of anastomoses as in the longer segments of PI. XVIII. 

 Fig. 4. The general appearance of these specimens reminds one 

 of the small leaves in Pavia and other Dicotyledons, which are 

 intermediate between bud -scales and true foliage leaves. The 

 question of the specific identity of these smaller forms and the 

 longer-leaved type has been discussed in the introductory remarks 

 on Sagenopteris Phillipsii. 



Scarborough. Bean Coll. 



39,311. PI. XVIII. Fig. 3. 



A single obcordate segment attached to a fairly broad petiole, 

 which ends basally in a clean-cut surface evidently representing the 

 actual base of attachment. The specimen is 3 cm. long. There 

 is no definite midrib, but the lamina is traversed by spreading 

 and anastomosing veins. Bunbury refers to this specimen in his 

 remarks on Sagenopteris cuneata, L. & H. A similar specimen, in 

 which a short petiole terminates in a single leaflet, may be seen 

 in the Scarborough Museum. 



39,221. Text-fig. 25 ; Lindley & Hutton, pi. Ixiii. fig. 1. 



This is certainly the type-specimen of fig. 1 in pi. Ixiii. of Lindley 

 and Hutton ; the original drawing is reversed, and the venation 

 characters are not accurately shown, the meshes being much too 

 large. The preservation of this example is remarkably good ; 



1 For a figure of the type-specimen of Lindley & Hutton, vide Seward (00), 

 pi. iii. fig. 7. 



