SELLARDS.| Fossil Plants, Upper Paleozoic, Kansas. 463 
Lawrence shales. More than two-thirds of the Wellington 
species are either identical with or most closely related to 
species or genera characteristic of the Kuropean Permian. The 
points which seem to have the most importance as bearing on 
the correlation of the Wellington are the following: (1) The 
complete absence of species in any way confined to or distinc- 
tive of the Coal Measures. (2) The comparatively small num- 
ber of species originating as early as Upper Coal Measures 
time. (3) The presence of a few species common to and char- 
acteristic of the Permian of Europe. (4) The close relation 
of the new forms to species characteristic of the European Per- 
mian. (5) The distinctly Permian facies of the flora as a 
whole and its marked advance over the flora of the Upper Coal 
Measures. 
The advance in the flora consists in the number of species 
and abundance of individuals of callipterid and teniopterid 
ferns and of the new genus Glenopteris, which appears to be 
related on the one hand to callipterid ferns of Permian types, 
and on the other to the Triassic genera Cycadopteris and Loma- 
topteris. 
The evidence derived from the fossil plants, seems to assure 
the reference of the Wellington to the true Permian in the 
European sense. 
The flora of the formations intervening between the Douglas 
formation and the Wellington shales is much less satisfactorily 
known. A good deal of interest is attached to the discovery of 
plants in the Wreford limestone, especially as this formation 
has been recently regarded as the base of the Permian in Kan- 
sas. Nine species have been obtained from this locality, as 
follows: Baiera sp., Callipteris conferta, Callipteris sp., Car- 
diocarpon sp., Carpolithes sp., Cordaites sp., Rhabdocarpos sp., 
Sigillaria sp., Walchia pinniformis. The collection obtained 
from this formation is small and comes from a single locality 
near Reece, Kan. The association of the flora so far as ob- 
tained is with the Wellington rather than with Coal Measures 
flora. The presence of Walchia in abundance, and of callipterid 
ferns, along with the small species of seeds common to the 
Wellington, together with the absence, so far as yet noted, of 
all of the common Coal Measures species, gives the flora of the 
Wreford, as developed at Reece, a distinctive Permian facies. 
Coal Measures species, although rare in the collection ob- 
tained from the Wreford limestone at the Reece locality, recur 
