172 On the Pre-carhonijerous Flora of 



in some aspects appear to be transversely furrowed stems with 

 longitudinal striae, and in other specimens present the appearance 

 of monocotyledonous leaves, with strong longitudinal nerves and 

 more slender transverse ones. These are perhaps stipes of ferns, 

 some species of Cyclopteris presenting a somewhat similar appear- 

 ance in their flattened petioles. There also occur both at St. 

 John and Gaspe, carbonaceous films of uncertain form, and mi- 

 nutely pitted all over, the precise nature of which I cannot de- 

 termine. 



II. Perry, Maine. 



The rocks at this place consist of sandstones and shales, very 

 closely resembling those of Gaspe. They were first described by 

 Dr. Jackson, in his Report on the Geology of Maine. More re- 

 cently they have been noticed by Prof. Rogers, in the Proceed- 

 ings of the Natural History Society of Boston. Prof. Rogers 

 regards them as of Devonian date, in which view Dr. Jackson 

 concurs, and the evidence of the plants is favourable to the same 

 conclusion. Their stratigraphical relations have not, however, 

 been accurately worked out. Mr. Richardson, of the Geological 

 Survey of Canada, represents them as apparently resting un con- 

 formably on metamorphic rocks of uncertain date, but which, 

 according to some recent observations of Prof. Rogers, may be in 

 part of Upper Silurian age. The fossils from this place which 

 have come into my hands, are preserved somewhat imperfectly in 

 hard coarse sandstone. They consist of the following species : — 



1. Cyclopteris Jacksoni, — S. n, 



I think it but just to name this fine species after its original 

 discoverer, and the explorer of the geology of Maine. It is closely 

 allied to C. Hihernica and C. McCoyana from the Devonian of 

 Ireland; but is sufficiently distinct to constitute a well marked 

 species. It resembles the ferns just named in the dense arrange- 

 ment of its pinnules, which largely overlap each other ; but it 

 difi'ers from them in the arrangement of the pinnge, in the form 

 of the pinnules, and in the character of the rhachis. It seems 

 quite distinct from any of the ferns from the Devonian of Penn- 

 sylvania, &c., described by Lesquereux. The specimen figured is 

 one in the collection of the Natural History Society of Portland. 



