114 TRANSACTIONS OF THE [jUNE 6, 



species. It is reported doubtfully in the Hamilton group, probably 

 of New York (Dawson, Quart. Jour. Gcol. Soc, vol. xviii, 1862, 

 p. 309) ; in the Subconglomerate of Pennsylvania, Tennessee, 

 Alabama, and Arkansas ; in the Upper Devonian of Canada and 

 New Brunswick; in the Devonian of England, Scotland, Ireland, 

 Prussian-Saxony, Belgium, and Silesia; in the sub-Carboniferous 

 of Moravia, Bohemia, Saxony, Silesia, Hesse, Alsace, Prussian- 

 Saxony, Russia, Styria, Belgium, Siberia, Spitzbergen, Bear 

 Island, and Australia ; in the Carboniferous of France, Carinthia, 

 Silesia, Westphalia, and Hannover ; and in the Permian of Scot- 

 land, Bohemia, and Saxony. 



Lepidodendron gaspianiim was described by Dawson in the 

 Quart. Jour. Geol. Soc, vol. xv. Pt. I, 1859, pp. 483, 484, Figs. 

 3a-d, from the Devonian of Gasp^, Lower Canada, now known as 

 the Province of Quebec. 



DaAvson, Can. Nat. and Geol., vol. vi, June, 1861, p. I'r4, re- 

 ported the species from Perry, Maine, Avhich is now called Upper 

 Devonian bv Dawson (Fos. Plants Erian and Up. Sil., Pt. II, 188'2, 

 p. 97; The Geological History of Plants, 1888, p. 107), and stated 

 by Professor L. W. Bailey to resemble most nearly the Catskill of 

 New York (Proc. and Trans. Roy. Soc. Canada for 1889, vol. vii, 

 1890, Sec. lY, p. 60). 



Dawson, Quart. Jour. Geol. Soc, vol. xviii, 1862, pp. 312, 313, 

 pi. xiv, figs. 26-28 ; pi. xvii, fig. 58, reported the species from the 

 Middle and Upper Devonian of Gaspd, (table on p. 326), and from 

 the Upper Devonian of St. John, New Brunswick. In New York 

 it was stated to occur " in the base of the Catskill group and in the 

 upper part of the Hamilton group" (p. 313) ; but in a note opposite 

 p. 329, it is stated that " the plants noticed in this paper as from 

 the Catskill group of New York really belong to a somewhat lower 

 horizon, that of the Chemung group." Dr. Dawson identified the 

 plant figured by Professor H. D. Rogers (Geol. of Penna., vol. ii, 

 pt. II, p. 829, fig. 677), and which he thought was identical with 

 the Lepidodendron chemungense (Hall) Dn., from the Chemung 

 group, near Elmira, New York, from the Vergent series of Penn- 

 sylvania (Chemung of the New York nomenclature), as belonging to 

 this species. The specimen figured by Vanuxem (Geol. New York, 

 pt. Ill, p. 157, fig. 38), which came from the Hamilton stage near 

 Unadilla Forks, Otseij-o County, and other specimens regarded as 

 the same species by Yanuxem, reported from the Hamilton on the 

 Cooperstown and Burlington road, about three miles from Burling- 

 ton, Otsego County, as well as on the road from Summit to Hins- 

 dale, probably in the Hamilton of Schoharie County, was considered 

 by Dr. Dawson as belonjjing to this species ; also the specimen (op. 

 cit., p. 191, fig. 55) from the Catskill between Bainbridge, Chenango 

 County, and Colesville, Broome County. [The geological age of the 

 last specimen is older than the Catskill and probably near that of 

 the lower Chemung.] 



Dawson, Fos. Plants Dev. and Up. Sil. Canada, 1871, p. 33, in 



