144 TRANSACTIONS OF THE [JUNE 6, 
species.. It is reported doubtfully in the Hamilton group, probably 
of New York (Dawson, Quart. Jour. Geol. Soc., vol. xviii, 1862, 
p. 809); 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 gaspianum 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 Gaspé, Lower Canada, now known as 
the Province of Quebec. 
Dawson, Can. Nat. and Geol., vol. vi, June, 1861, p. 174, re- 
ported the species from Perry, Maine, which is now called Upper 
Devonian by Dawson (Fos. Plants Erian and Up. Sil., Pt. II, 1882, 
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 (Proce. and Trans. Roy. Soc. Canada for 1889, vol. vii, 
1890, Sec. IV, p. 60). 
Dawson, Quart. Jour. Geol. Soc., vol. xviii, 1862, pp. 312, 313, 
pl. xiv, figs. 26-28; pl. xvii, fig. 58, reported the species from the 
Middle and Upper Devonian of Gaspé, (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. ILI, p. 157, fig. 38), which came from the Hamilton stage near 
Unadilla Forks, Otsego County, and other specimens regarded as 
the same species by Vanuxem, 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 belonging 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 
4 
