‘ 
Lesquereux.] 322 {March 1, 
linear lanceolate, with the borders incurved, especially towards the top, 
which thus appear acuminate. The nervation has equally the character 
of the large leaves, the primary veins being one half to three-fourths of a 
millimeter distant, with two or three intermediate distinct vinelets. 
Under the name of Cordianthus simplex, I refer the stem bearing flow- 
ers, Pl. XLVIUI, fig. 4, 4%, to this species especially because the specimens 
were found in the same shale and in proximity to those bearing leaves, 
though not in connection with them. Of these stems one is entirely naked, 
without leaves or flowers; the other figured here shows some difference in 
its slightly thicker coaly surface and in the absence of distinct leaf scars. 
These, however, may have been obliterated by longer process of decom- 
position ; for the racemes of flowers are flattened by compression and 
irregularly flexuous, with their vascular filaments distinct, as if the branches 
had been in an advanced state of maceration. The flowers, which ap- 
pear to be male flowers and borne upon a short peduncle, are mostly 
turned downward and are composed, as seen fig. 12, of three or four in- 
volucral, thick, lanceolate, abruptly pointed sepals. The point of attach- 
ment of the elongated narrow racemes is round, inflated in the lower part, 
as seen fig. 4°, Their position in regard to the leaves is not possibly seen. 
Comparing these fructifications to those which have been figured by 
Grand’Eury, there is a marked difference in this, that all the flowers 
figured by this author either sterile or fertile are sessile upon the branch- 
lets. It is the same with those figured by Dawson under the name of 
Trigonocarpum racemosum in his Devonian Plants, Quat. Jour. Geol. Soc. 
vol. XVIII, Pl. XVI, fig. 47, which are referable to Cordianthus baccifer 
of Grand’Eury; those also of Weiss, Foss. flora, p.'195, fig. 1, repre- 
senting Cordianthus gemmifer. A point of likeness only is found for the 
form of the flowers attached to a short pedicel and the thick raceme in 
Sternb. Fl. der Vorw., Pl. XXVI, fig. 2. This figure, though described 
without reference as plantula debilis, p. 33, evidently represents flowering 
branches of Cordaites. 
Habitat. Cannelton. I. F. Mansfield. 
CORDAITES GRACILIS, Sp. NOV. 
Pl. XLVI, fig. 4-4. 
Stem slender, with a rugose somewhat thick bark; leaves sessile by a 
narrowed base, open or curved backward, distant, gradually enlarged 
from the base upwards, sublinear, obtusely truncate at the top; nervation 
indistinct in the upper corticated surface, which is somewhat rough, 
primary nerves variable in distance from one millimeter apart to three or 
four in two millimeters, with one or two, even four, intermediate, very thin 
veins. 
Closely allied to the former by its distinct and distant nervation, it is, 
however, far distant by the form, the size, the position of its leaves, and 
its thick, rough bark. The part of stem preserved is seventeen centimeters 
long, seven millimeters wide at its base, four millimeters at its top, flat- 
