BUNBURY ON THE COAL FORMATION OF CAPE BRETON. 429 



14. Pecopteris NERVOSA, Bvongu, 



Agrees exactly with British specimens, and pretty well with the 

 figure in Lindley and Button's ' Fossil Flora,' t. 94. 



15. Pecopteris plumosa, Brongn. 



Differs slightly from Brongniart's figures, the segments of the pin- 

 natifid pinnse being more obtuse, more strictly linear, and placed more 

 perpendicularly with respect to the stalk. 



The same plant, precisely, was obtained by Mr. Lyell from Pome- 

 roy, Ohio. 



16. Pecopteris abbreviata, Brongn. 



Seemingly a very common plant in the Sydney coal-field ; agrees 

 entirely with Brongniart's description and figures. 



There are also, among Mr. Brown's specimens, some which seem 

 to belong to a variety of this with more distantly-set leaflets. 



17. Pecopteris POLYMORPHA? {Brongn. Veg.Foss.) 



One of the specimens from Cape Breton I am inclined to refer to 

 this species rather than to P. ahhreviata, because, 1st, the leaflets 

 are more convex than in the latter, and apparently of a thicker and 

 more coriaceous texture ; 2ndly, most of them are quite entire on the 

 edges, a few of the lowermost only being slightly sinuated ; 3rdly, 

 the lateral veins, though not very distinct, appear to be tmce forked, 

 and not pinnated as in P. abbreviata. 



18. Pecopteris Cyathea, Brongn.1 



A few fragments, scarcely admitting of a satisfactory determination, 

 but apparently belonging to this or to some closely-allied species. 



19. Sphenopteris obtusiloba? {Brongn. Veg. Foss. t. 53. f. 2?) 



Fragments, much resembling the figure above quoted, but with the 

 lobes less deeply separated, the surface of the leaves apparently more 

 convex, and the veins fainter. They have a considerable likeness also 

 to the Sp/ien. latifolia of the 'Fossil Flora,' t. 156, which seems to 

 be different from Brongniart's plant of the same name. I have a 

 specimen almost precisely similar from Oldham in Lancashire. 



20. Sphenopteris . 



A small fragment of a very delicate and pretty little Fern, allied to 

 8. distans, but too incomplete to be positively determined. 



21. Sphenopteris artemisi^folia? {Brongn. Veg. Foss. t. 46 



&47?) 



Apparently referable to this species, or merely a variety of it. 

 The secondary divisions of the frond are less wedge-shaped than in 

 Brongniart's figures, more approaching to a linear form, and much 

 more regularly cut or lobed, indeed almost pinnatifid. 



2 G 2 



