FBOM THE HTJTTON COLLECTION. 77 



Neuropteris flexuosa, Brongniarfc. 



Type — Neuropteris flexuosa, Brongt., Hist. Veg. Foss., 



pi. 65, f. 2, 3; pi. 68, f. 2. 



Osmunda gigantea, var. B. Sternb., Vers. I., pi. 32, f. 2. 

 Neuropteris heterophylla, L. et H., Foss. Flora, pi. 197. 

 Neuropteris flexuosa, Gutb., Vers. Zwick., pi. 6, f. 12; 



pi. 7, f. 1,2. 

 ,, plicata, Sternb., Vers. I., pi. 19, f. 1, 3. 



,, ,, Lesqx., Coal Flor. Penns., pi. 10, 



f. 1-4. 



125. — Neuropteris heterophylla, L et H. Type specimen, F. F., pi. 197. 

 This shale was worked for clay ironstone nodules very many 

 years ago. The position of the bed is doubtful, but certainly 

 above the High-Main Seam, which is sunk to at some depth 

 in the Monkseaton Colliery. 



A single pinna of a large bi- or tri-pinnate frond, with re- 

 mains of fourteen pinnules placed nearly opposite to each 

 other, and not alternately as in N. gigantea, F. F., pi. 52 ; the 

 pinnules also are more curved and not so close ; the nervation 

 is also different, and distinctly seen to bifurcate three or four 

 times. 

 Loc— Ironstone shale, Whitley, Northumberland. (H. C. 285). 



Remarks. — In the present uncertain state of our knowledge of 

 tbe genus Neuropteris, it is oftentimes difficult to determine 

 what species the fragmentary pinnse and deciduous pinnules 

 belong to ; but it is quite certain that the Type specimen of the 

 F. F., pi. 197, does not belong to N Loshii, that is N. hetero- 

 phylla, Brongt. And it bears most resemblance to the species 

 which it is referred to above, though it must be acknowledged 

 that the figures given of N flexuosa are very fragmentary, and 

 the same remark applies to most of the species of this genus, of 

 which large specimens are seldom obtained. 



Neuropteris auriculata, Brongniart. 



Type — Neuropteris auriculata, Brongt., Hist. Veg. Foss., 



pi. 66. 

 Filicites osmundce, Artis, Anted. Phyt., pi. 7. 



Cyclopteris auriculata, Gutb. Vers. Zwick. Swarzk., pi. 6, 



f. 8 and 13. 

 „ „ Sternb., Vers. II., pi. 22, f. 6. 



