SELLARDS.|] Fossil Plants, Upper Paleozoic, Kansas. 433 
Daubreeia paterzeformis (Germar) Zeiller (?). Pl. LII, figs. 1, 2; pl. 
IEW, ime, 449 Fol, IL\WIls aes BS yo, IOAVIUNE, ankee, aL, 
Owing to the uncertainty which still exists concerning the 
nature of this fossil, and the limits of variation to be expected 
within a species, it is impossible at present to do more than 
make an approximate reference of the American material. It 
may be said, however, that the specimens which have come to 
light in this country are in their general organization essen- 
tially like those of the French Coal Measures. Such differences 
as they present may, when better known, prove to be the re- 
sult of differences in preservation, rather than varietal or spe- 
cific characters. The specimens obtained from the Le Roy 
shales are more nearly in agreement with the Commentry speci- 
mens, and except for somewhat larger ribs appear to agree in 
all essential characters. The Onaga specimens are, however, 
more doubtful, not only on account of their great range in size 
and structure, but from the fact that three to five seem to be 
the common number of ribs developed on these forms. 
Formation and locality: Le Roy shales, Lawrence, and EKlm- 
dale formation, Onaga. 
Genus undt. PI. LI, figs. 7, 10. 
A characteristic plant of an undetermined genus is not at all 
uncommon at the Haverkampf locality in the Le Roy shales. 
The frouds are very delicate, evidently of considerable length, 
none having been seen complete. The frond is flexuous, di- 
vided by dichotomy at more or less regular intervals, and is 
traversed by a single median strand. 
Fungi. 
Hysterites sp. Pl. XLVI, fig. 8. 
The linear, elliptical or elongate marks which often occur on 
the leaves of Neuropteris scheuchzeri seem by their shape to 
belong to the genus Hysterites. The plant figured by Bunbury 
(Quart. Jour. Geol. Soc. 3, pl. 21) as N. cordata is, as stated by 
Fontaine and I. C. White, referable to N. Scheuchzert (hir- 
suta), and the sears occurring on it are the same as commonly 
occur on this species, and, as Bunbury says, are the result of 
disease. Numerous specimens of N. scheuchzeri from the Le 
Roy shales show this fungus. The fungus occurring on Cor- 
daites is apparently a similar species. 
Excipulites neesii Goep. 
This fungus is found on many fronds of Pseudopecopteris 
pluckenetui from the Chanute and the Le Roy shales. 
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