358 Proceedings of the Royal Physical Society. 



drawn. In the plate the pinnae are represented as being of 

 almost equal width throughout their whole length, and 

 abruptly terminated by an odd leaflet. In the specimen 

 which is preserved in the " Hutton Collection/' the apices of 

 all the pinnae are broken off, hence their termination, as 

 represented in the plate (which is about two-thirds natural 

 size), are purely imaginary. The drawing of the pinnules is 

 also incorrect, the plant being, in fact, merely a specimen of 

 Neukopteris heterophylla, Brongt. 



PL xxxviii. Pecopteris heterophylla. 

 Locality. — Felling Colliery. 



Horizon. — Lower Coal-Measures. High Main Coal. 

 Bemarhs. — This is clearly the Alethopteris decurrens, 

 Artis sp.^ 



PI. xxxix. Sphenopteris crenata, L. and H. 



Locality. — Jarrow Colliery. 



Horizon. — Lower Coal-Measures. Bensham Seam. 



Note. — I defer my remarks on this species till a future 

 time, as there are in my hands at present specimens of this 

 and some allied species, which cannot well be treated of in 

 this communication. 



PI. xl. Odontopteris obtusa, L. and H. {not Brongt.). 



Locality. — Leebotwood, 4 miles from Church Stretton, 

 Shropshire. 



Horizon. — Upper (?) Coal-Measures. 



Remarks. — This is not the Odontopteris ohtusa, Brongt. To 

 distinguish Lindley and Hutton's plant from that species, 

 Sternberg named it Odontopteris Lindleyana,^ under which 

 name it is now enrolled. 



PL xli. Neuropteris cordata, L. and H. (not Brongt.). 

 Locality. — Leebotwood Coal Pit, 4 miles from Church 

 Stretton, Shropshire. 



Horizon. — Coal-Measures. 



Remarks. — A great deal of confusion has arisen in regard 



^ Filicites decurrens, Artis, Antedil. Phyt., pi. xxi, 

 ^ Ess. FL d. mond. prim., ii., p. 78. 



