1862.] DAWSON DEVONIAN PLANTS. 297 



Devonian strata of Gaspe ; but it was not until 1859 that these 

 plants were described by the author in the ' Proceedings ' of this 

 Society*. More recently Messrs. Matthew and Hartt, two young 

 geologists of St. John, New Brunswick, have found a rich and interest- 

 ing flora in the semi-metamorphic beds in the vicinity of that city, in 

 which a few fossH plants had previously been observed by Dr. Gesner, 

 Dr. Eobb, and Mr. Bennett of St. John ; but they had not been 

 figured or described. These plants, however, I described in the 

 * Canadian Naturalist 'f, together wdth some additional species, of 

 the same age, found at Perry, in the State of Maine, and preserved 

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

 whole of the plants thus described I summed up in the paper last 

 mentioned as consisting of 21 species, belonging to 16 genera, ex- 

 clusive of genera like JSternhergia and Lepidostrohits, which represent 

 parts of plants only. 



In the past summer I visited St. John; and, in company with 

 Messrs. Matthew and Hartt, explored the localities of the plants 

 previously discovered, and examined the large collections which had 

 been formed by those gentlemen since the publication of my previous 

 paper. The material thus obtained proving unexpectedly copious 

 and interesting, I was desirous of having opportunities of fuller 

 comparison with the Devonian Flora of New York State ; and, on 

 application to Prof. Hall, that gentleman, with consent of the 

 Eegents of the University of New York, kindly placed in my hands 

 the whole of his collections, embracing many new and remarkable 

 forms. Prof. C. H. Hitchcock, State-geologist of Maine, had in the 

 meantime further explored the deposits at Perry, and has com- 

 municated to me three new species discovered by him. The whole 

 of these collections, amounting in all to more than sixty species, 

 constitute an addition to the Devonian Plora equal in importance to 

 aU the plants previously obtained from rocks of this age, and establish 

 for some of the species a very extensive distribution both geologically 

 and geographically ; they allow, also, more satisfactory comparisons 

 than were heretofore practicable to be instituted between the Devo- 

 nian Flora and that of the Carboniferous Period. 



I shall first shortly notice the geological character of the localities, 

 with lists of the fossils found in each, and shall then proceed to de- 

 scribe the new species. 



I. Notices of the Localities of the Devonian Plants. 



1. State of New York. — The geology of this State has been so 

 fully illustrated by Prof. Hall and his colleagues, and the parallelism 

 of its formations with those of Europe has been so extensively made 

 known by Murchison and others, that it is only necessary for me to 

 state that the fossils entrusted to me by Prof. HaU range from the 

 Marcellus Shale to the Catskill group inclusive, and thus belong to 

 the Middle and Upper Devonian of British geologists. The plants 

 are distributed in the subdivisions of these groups as follows : — 



* Quart. Journ. Geol. Soc. vol. xv. p. 477. t Vol. vii. May 1861. 



