414 University Geological Survey of Kansas. 
Neuropteris scheuchzeri Hoffm. Pl. XLVI, fig. 8. 
Neuropteris scheuchzert Hoffman, in Kieferstein, vol. 4, p. 157, pl. 
1b, figs. 1-4, 1826. 
Neuropteris hirsuta Lesquereux, Boston Journal Science Nat. Hist., 
vol. 6, p. 417, 1854. 
Neuropteris fasciculata Lesquereux (pars.), Geol. Report, Illinois, 
vol. 4, p. 381. 
Neuropteris scheuchzeri in its varying forms is present in 
the Kansas Coal Measures from the Cherokee shales to the 
Garrison formation. The specimens from Lansing, 100 feet 
below the top of the Cherokee shales, are for the most part nar- 
row, more or less distinctly pointed at the apex, in which re- 
spect they approach the form found at Clinton, Mo., and for 
which White has suggested the varietal name angustifolia. A 
few much larger pinnules occur at this locality, approaching in 
size Neuropteris discipiens, from which they are, however, 
separated by their finer nervation. The species is exceedingly 
abundant in the Le Roy and Scranton shales. 
N. scheuchzeri differs from its nearest relative, N. decipiens 
Lesqx., by its more numerous veins, counting 35 to 45 and even 
50 per centimeter, while N. decipiens has an average of 26 to 
32 per centimeter; rarely as few as 22 or as many as 35. UN. 
decipiens has also a much larger and more obtuse pinnule with 
stronger hairs. The constancy of these characters on many 
hundreds of specimens from the type locality of N. decipiens 
which I have examined appear to me sufficient reason for re- 
taining, as White suggests, the two forms separate. Under the 
name WN. fasciculata Lesquereux has apparently described and 
figured anomalous or cyclopterid pinnules of more than one 
species. As for the Mazon Creek representatives of N. fascicu- 
lata the several specimens that have come to my notice have 
presented quite uniformly the distinctive characters of N. de- 
cipiens. Other figured specimens appear to belong, in part at 
least, to Neuropteris scheuchzert. 
Mr. David White has given a careful description and full 
discussion of this species in Bulletin 98 of the United States 
Geological Survey, to which the reader is referred for a more 
detailed account. The terminal pinnule of the secondary pinna 
is peculiar. It is easily recognized by its elliptical shape, sym- 
metrical and slightly cordate base attached to a pedicel-like 
extension of the rachis. These terminal pinnules are not in- 
frequently found detached. Below the terminal pinnule is 
found one or more pairs of lateral pinnules, slightly petiolate, 
