312 OLDER MESOZOIC FLORAS OF UNITED STATES. 
two species, LZ. elipticus and L. circularis. These he describes on 
p- 130. In fig. 98, on p. 129, he gives a representation of a complete 
form of ZL. ellipticus, and in pl. iii, fig. 6, he depicts two scales of it. 
In pl. iii, fig. 4, he represents a complete specimen of ZL. circularis. 
The genus he describes as— 
A disk or discoidal plane, formed of distinct and separate wedge-form grooved 
scales, arranged in a circle or ellipse, and the scales terminating outwardly in tri- 
angular lamine, and forming around the main disk a collar of pointed scallops. 
His description of Z. ellipticus is as follows: 
Disk elliptical, scales attached to an elliptical nucleus. Disk supported by or 
attached to a stem, which passes through the middle in the direction of its long axis. 
The number of scales of the disk is from twenty to twenty-four. The stem is not 
always visible. 
His description of Z. circularis is: 
Disk or circle, formed of scales, as in the preceding, but they appear to radiate 
from its center. In this specimen a dark-colored, flattish, or circular body is con- 
nected to the central termination of the scales, which may have been the fruit or 
seed. 
In addition he says: 
There are certain facts connected with this plant, which are not rationally explained, 
on the natural supposition that they are analogous to the cones of pines or fruit- 
bearing bodies; for the same species of disks with their scales occur, which are less 
than half an inch in diameter, and in another instance the disk is formed of three 
concentric tiers of scales, the center one similar to the figure given, but the outer 
one bordering it, formed of shorter scales. It is 7 inches in diameter, and another, 
formed of a single row of scales, is 5 inches in the longest diameter. 
Still farther on he says the detached scales are very numerous. 
In Mon. U. 8. Geol. Survey, Vol. VI, pp. 118, 119, I stated my 
opinion that these fossils are cones of some conifer near to Araucaria, 
the cones being mashed flat in the direction of their longer axis. I 
also stated my belief that the two supposed species are the same. 
This opinion of the fossil was based upon the assumption that Emmons 
found the imprints, commonly, in the complete state figured, with the 
features given in the descriptions. 
There are in Emmons’s collection numerous specimens of these fos- 
sils, some of them still bearing his field label, with the name Lepacy- 
clotes. I examined them carefully and could find no specimen any- 
thing like his fig. 98. One specimen, that given in Pl. XLVI, Fig. 4, 
of this paper, is evidently the original of pl. iii, fig. 4, which repre- 
sents Emmons’s ZL. circularis. The other specimens are either the 
so-called scales detached, or attached to a circular or elliptical ring. 
Only a few of the latter kind were seen, and in no case was the ring 
complete. It is evident that the exact shape, whether it be circular 
or elliptical, is not significant. They both were originally circular, 
and the elliptic form comes from distortion. The detached parts, the 
