FKOJI THE HUTTON COLLECTION. 



91 



Pecopteris sp. 



in vernation. Woodcut No. 3. 



170. — Pecopteris , in vernation. (Spiropteris , Lebour, 111. Foss. 



Pits., pi. 46). Type. 



A small fern, in ver- 

 nation. General ap- 

 pearance cone-shaped, 

 about three inches long 

 by one inch in breadth. 

 The unfolded pinna? 

 circinate on each side 

 of the stem, curving 

 upwards and inwards, 

 and having the appear- 

 ance of a series of 

 small Ammonites on 

 each side of the rachis. 

 The rachis appears to 

 have been soft, and is 

 much flattened out by- 

 compression. 



Loc. — Shale above the 

 Bensham Seam, Jar- 

 row. (H. C. 309). 



Remarks. — This little specimen, "Woodcut No. 3, is perhaps as 

 interesting an example of a Pecopteris in vernation as any that 

 has been figured. The "woodcut gives a more exact representation 

 of the size and appearance than Hutton's figure in the Illustra- 

 tions. The uncoiled secondary pinnae resemble a row of small 

 Ammonites tapering away in size to the top on each side of the 

 main stem, the bulging out of which in the centre seems to shew 

 that it was in a fresh succulent condition when first embedded 

 in its shaly matrix. It probably belongs to the preceding species, 

 P. plumosa. 



Pecopteris Bucklandi, Brongniart. 



Type — Pecopteris Bucklandi, Brongt., Hist. Veg. Foss., 



pi. 99, f. 2. 

 Pecopteris Bucklandi, L. etH., Foss. Flora, pi. 223. 

 Neuropteris atlenuata, L. etH., Foss. Flora, pi. 174. 



