Lesquereux. j 318 {March 1, 
leaves like the one described, for he says in a note on a sub-species of 0. 
borassifolius, under the sub-specific name of crassifolius, loc. cit., p. 216. 
“‘T do not know as yet if I can refer to the same type some more consistent 
thicker leaves of which one of the faces is anguloso-striate by stronger and 
alternate thinner veins, but of which the other is finely and equally stri- 
ate.’ This remark describes the nervation of our species. I should, there- 
fore, have preserved Grand’ Eury’s name, if the characters of these leaves, 
especially the mode of attachment, had not been so far different from that 
of the following section, and especially if the French author had given a 
description instead of a remark. 
Habitat. Cannelton, Beaver County, Pennsylvania, I. F. Mansfield. 
CORDAITES CRASSUS, Sp. NOV. 
Negyerathia crassa? Goepp. Foss. fl. der Ueberganzsgebirges, p. 220, 
Pl XL: 
_ The specimens appear rather to represent a large stem of the Neggerathia 
or of Cordiates than leaves. Fragments of the same character are found in 
the coal measures of Pennsylvania. Years ago I sent to Prof. Brongniart, 
among other specimens, a leaf or stem similar to that described by Geeppert, 
but with narrower striz. Its reference was not mentioned by that cele- 
brated author. These fragments vary in thickness, from two to five milli- 
meters, are coarsely but equally striate, resembling flattened stems of Cala- 
mites, without articulation, and with thinner strise-like fascicles of nerves 
inflated at some places, or buried into a thick epidermis. 
[GRANDIFOLIA. ] CORDAITES GRANDIFOLIUS, Sp. Nov. 
Pl. XL VII, fig. 1, 2, 2a. 
Leaves large, of a thick texture, gradually and rapidly enlarging up- 
yards and fan-like, from a narrow, semi-lunar base, thirty centimeters 
long or more, round-truncate or rounded and undulately lobed and split at 
the top ; nervation double ; primary nerves obtuse, three to four in one mil- 
limeter, dichotomous or splitting, inflated toward the base, with one often 
indistinct intermediate vein, becoming more marked near the base. 
Of this species I have not seen any stems, and all the leaves which I had 
for examination have the same truncate narrow base, one of them being 
cut at the point of attachment in the semi-lunar form of the leaves of Cor- 
daites. Among the fine specimens sent by Mr. R. D. Lacoe, of Pittston, 
most of which are too large for illustration in our plates, the outspreading 
upwards is marked in different degrees. One of the leaves, for example, 
is thirty-eight centimeters long, gradually enlarging to the rounded top, 
where it is sixteen centimeters wide, undulate and split in short lacinis, 
like fig. 1. 
Another leaf with the base six millimeters broad, truncate, but con- 
cave as to a point of attachment, is thirty-two centimeters long, and fifteen 
centimeters broad at the top or there nearly half as broad as long. 
The only relation I find to this species is with Maggerathia obliqua and 
