SCIENTIFIC SURVEY. 4^3 



the bed occurs, I suppose to be that of the upper member of the 

 St. Johu series, or the upper Devonian sandstone of Gaspe. Its 

 total thickness appears to be about 1300 feet, and the lowest bed 

 which I observed was a very coarse angular conglomerate or brec- 

 cia. In respect to the geological relations of these beds to the 

 underlying shales, &c., I have nothing to add to what is stated in 

 your report of last year. 



The new facts ascertained last summer in the fossil botany of 

 Perry, may be summed up as follows : 



1. Having carefully collected the fragments of fossil wood show- 

 ing structure, I find among them in addition to Aporoxylon, and 

 stems of ferns, portions of the wood of a conifer, of the genus 

 Dadoxylon. 



2. Fragments of a small Stigmaria resembling my S. exigua, from 

 New York, but distinct, which I propose to name S. pusilla. Plate 

 II. fig. 1. There are also some fragments of leaves which may be 

 those of Sigillaria. 



3. Specimens of Lepidostrobus Richardsoni, showing that these 

 strobiles were attached in a row on one side of a slender stem 

 bearing branchlets with short reflexed leaves ; the whole showing 

 that this plant was a new and beautiful species of Lycopodites. 



4. Another Lycopodites with long slender leaves, which I pro- 

 pose to name L. comosus. Plate II. fig. 2. 



5. A plant having the aspect of Calamites, but referable to the 

 genus Anarthrocanna of Goeppert; I propose to name this, A. 

 Perriana. Plate II, fig. 3. 



6. A new Cordaites ; or at least a lanceolate leaf, with broad 

 base and uneven parallel nervation, and to be placed in this genus 

 rather than any other. It may be named 0. flexu.osus. Plate II. 

 fig. 4. 



7. More perfect specimens of Cyclopteris Browniana,* showing' 

 that it was a large flabellate frond of most graceful aspect. I now 

 suspect that it may be the same with the leaf from the Upper De- 

 vonian of Pennsylvania figured but not named by Rogers— Report 

 on Pennsylvania, Vol. 2, Part 2, Plate 22. -As suggested by 

 Prof. Balfour in relation to the Pennsylvania plant, it nearly as 

 much re sembles the leaf of a conifer like Salisburia as a fern. Plate 

 11. fig. 5. 



* The drawing of Cyclopteris Browniana is taken from a specimen in the collection 

 of Prof. Rogers of Boston, which is rather more perfect than any obtained by me. 



•^. D. 



