58 PENNSYLVANIA AND NEW YORK DEVONIAN. [hull. 120. 
York State Museum at Albany. It is a magnificent specimen, show- 
ing the large base with roots and gradually tapering stem of a tree of 
considerable size, and certainly deserves careful study, with illustra- 
tion and description. 1 
The range and distribution of the species may be stated as follows: 
Hamilton of Huntingdon, Huntingdon County, Pa.; the Genesee of 
Canandaigua Lake, New York, and possibly in the same formation on 
Lake Huron, Ontario; in the Portage at Naples, Ontario County, and 
Sparta, Livingston County, N. Y. 5 also probably in the same formation 
at Milo, Yates County, N. Y. 
Lepidophloios antiquus Dn. was described and figured in Foss. Plants, 
Dev. and Up. Sil. Formations, Canada, 1871, p. 36*, PI. vin, figs. 90, 91, 
from the Middle Devonian of Gaspe. Also see the statement that 
" Leaves, apparently of a very small species of Lepidophloios are found 
rarely in the shales of St. John. They may possibly belong to the 
present species." The West Hurley specimen was identified by Sir 
William Dawson, and as far as I know, it is the first identification of 
this species in the United States. 
Psilophyion princeps Dn. occurs in considerable abundance. The 
bibliography, distribution, and range of this species may be found in 
a recent publication. 3 
It was stated that Psilophyion princeps Dn. a is most abundant in the 
Lower and Middle Devonian, but also ranges from the Upper Silurian 
to the Upper Devonian of Gaspe, occurs in the Upper Devonian of 
eastern New York (doubtful Catskill) and is reported from the Sub- 
carboniferous (Waverly) of Ohio. 7 ' 3 % 
In the Lawson quarry are a great many specimens which, though 
resembling Psilophyion princeps Dn. in some respects, differ in others, 
and may be simply fern stipes. Some of the specimens, however, are 
clearly this species, as is shown by comparing them with specimens 
from Canada, labeled, and sent me by Sir William Dawson, or with 
specimens from Haines Falls, Green County, which, upon being sub- 
mitted to Sir William Dawson, were identified as Psilophyion princeps 
Dn. 4 On one slab from this quarry are a considerable number of 
approximately parallel stipes, which are nearly fiat and show very 
little structure. The branching is opposite, a few of the branches are 
about 1J inches (3 cm.) in length, but most of them are not more than 
one-half inch in length where they are broken off. On the stipe which 
arises from the rhizoma the first branch is 1J cm. from the rhizoma; 
then the distance between the first and second and the second and 
'For a brief notice see Dr. Clarke m Bull. TJ. S. Geol. Surv., No. 16, 1885, pp. 63, 64. 
; Prosser: Trans. N. Y. Acad. Sci., vol. XI, 1892, pp. 1U9-142. The locality of Cascade Falls was 
in doubt when the above paper was written, but there are specimens in the State Museum at 
Albany, labeled "Rhizomes of Psilophyton, Cascade Falls, .Ithaca, N. Y.," which, if not the speei. 
mens identified by Dr. Dawson, probably came from that locality. The geologic ageof these specimens 
is therefore probably the Ithaca group. 
: Op. cit., p. 142. 
4 Am. Geol., vol. vn, 1891, p. 365. 
