FOSSIL PLANTS. 
437 
On the largest of my specimens, the scars are two and a-half inches long and 
one'and three-fourth inches broad. Some of these scars are distinctly marked 
by the cicatrices of the surface nearly to the middle, or just to the point of at¬ 
tachment of the strobile, which has only one-third of an inch diameter. 
This clearly indicates that the growth of the leaves was stopped around the 
pedicel of the cones by the compression of their open scales, and that the cone 
itself was attached to the tree by a pedicel as small as is generally the central 
axis of a Lepidostrobus. 
Collected in splendid specimens from Morris, by Mr. S. S. Strong. 
Ulodendron elongatum, Sp. nov. 
PI. xxiii, fig. 4. 
The cicatrices of the surface are in this species about of the 
same form as those of Lepidodendron rimosum, 8tern., or of 
Lepidoden dr on simplex , Lesqx., as represented vol. 2, pi. 45, 
fig. 5, ofthis Keport. They differ only by a narrow, elevated 
round border, which, as they are slightly apart from each other, 
leaves between them a narrow smooth furrow. The leaf scar 
is nearly central, as marked on the figure, and shows the three 
vascular points of a Lepidodendron. The strobile-scars are 
proportionally longer and narrower, than in the former spe¬ 
cies, nearly twice as long as broad, vertically distant eight 
inches or more. 
As 1 have not seen any specimens with double rows of these scars, I do not 
know at what distance they are placed horizontally, and whether they are alter¬ 
nate or opposite. From the form of its cicatrices, this species might be identi¬ 
cal with our Lepidodendron simplex , and the strobile scais represent the base of 
a cone like Lepidostrobus princeps , Lesqx., loc. cit. Both species also may be 
referable to Lepidodendron rimosum , Sternb., and Ijepidostrobus variabilis , LI 
and Hutt., which Prof. Geinitz, in his Verst., p. 35, describes as the same. It 
is only remarkable that this celebrated author persists in considering these enor¬ 
mous cones as sustained at the end of small branches which, according to his 
description, are only one-third of an inch in thickness, and that he admits the 
round scars of cones as mere branch scars. He has only figured one of them, 
however, in his tab. 3, fig. 16. It appears to represent the three different forms 
of Ulodendron mo jus, under the name of Haloniu punctata. LI. 
