SELLARDS.| Fossil Plants, Upper Paleozoic, Kansas. 407 
characteristic. No true midvein, but a slight depression run- 
ning up the center of the long pinnules, traversed by several 
fine veins, the branching of which supply the lateral veins. 
The lateral veins branch off at an acute angle, and curve more 
or less in passing to the border, depending on their position in 
the pinnule; those near the apex are nearly straight, or arched 
upwards throughout their entire length, those at the middle 
are more arched, while those of the auricles bend back with a 
short curve. The veins of the circular pinnules are flabellate 
from the base; all on reaching the border curve forwards de- 
cidedly, reaching the vein above, giving the appearance of a 
thin border vein, running from the base to the thickened apex. 
The lateral veins are fine but distinct and distant, counting, 
at their union with the border vein, 12 to 16, more commonly 
14, per centimeter. They are repeatedly dichotomous, the 
number of dichotomies depending on their position on the 
pinnule. The first vein of the auricle may be simple, or may 
dichotomize once. Above the auricles veins are seen dichoto- 
mizing three to five times, with a narrow angle. 
This species, first described in a preliminary way (but not 
figured) in the Journal of the Boston Society of Natural His- 
tory under the name JN. speciosa, appears in the final paper 
(Geol. of Penn.) as N. rogerst. The species is peculiar and 
very interesting. Its reference to Neuropteris.appears doubt- 
ful, as the upward curve of the veins at the border is more 
marked than in any other species of that genus. The frond 
presents other unusual characters, such as the thickened spot 
at the top of the pinnule where the veins from the two sides 
come together, and the lobate border, seen on some of the Kan- 
sas specimens. The lateral veins in curving around the lobes 
give the unique hooded appearance shown in figure 1, plate 
LIX. The Kansas specimens, except for the lobate border, 
agree fully with the figured types of the species in the Museum 
of Comparative Zoology at Harvard, with which, through the 
kindness of Dr. R. T. Jackson, I have had the opportunity of 
comparing them. 
Formation and locality: Lawrence shales, Twinmound, Kan. 
Neuropteris missouriensis Lx. Pl. XLVIII, fig. 4. 
I have seen of this species only the fragment of an ultimate 
pinna figured, but from its agreement with specimens from the 
type locality, Clinton, Mo., as well as with the figures and de- 
