vSOME FOSSIL PLANTS FROM THE MIDDLE DEVON- 
IAN OF MILWAUKEE, WISCONSIN. 
By. D. p. Penh allow, D. Sc., F. G. S. A. 
On the 26th of January of the present year, I received from 
Prof. H. F. Cleland of WilHams College, two photographs of 
specimens from the Hamilton Group at Milwaukee, Wisconsin. 
These were designated as being in all probability, a species of 
Nematophyciis which had already been found in the Hamilton 
Group of New York, and a plant possibly related to Zosterophyl- 
liim from the Old Red Sandstones of Scotland. 
Subsequently, the Director of the Milwaukee Museum, Mr. 
lienry L. Ward, to which institution the specimens belonged, for- 
warded the material for more thorough examination. From a 
critical study of these remains it has been possible to obtain more 
reliable data as now embodied in these notes, and to draw there- 
from certain tentative conclusions as a basis for further study. 
The specimens were designated as Nos. i and 2, and no details 
accompanied them bevond the simple statement that they were 
from the Hamilton Group of Milwaukee, Wisconsin. 
Nematophycus milwaukeensis n. sp. (Plate I.) 
The specimen No. i, carrying the museum number 402, and 
designated as having been collected by C. E. Monroe, from the 
Plamilton Group of Berthelet, Milwaukee County, Wisconsin, 
measures 68 cm. in extreme length. It has been broken into three 
fragments, but when in place, these show a continuous stem. The 
upper end has a width of 5.5 cm., and a maximum thickness of 
1.7 cm. These dimensions are maintained for a distance of 41 cm. 
when the stem expands, at first gradually and then somewhat 
rapidlv, into a rather large base 12 cm. broad and 3.8 cm. thick. 
8 
