warD.] TRIASSIC FLORA OF YORK COUNTY, PENNSYLVANIA. 245 
the Ctenophylla, may or may not be of the species Braunianum, for which reason 
attention is called to that locality in this connection. 
Localities. —N. C. R. R. cut, south of York Haven; Little Conewago, 
exploitation pit, west of Manchester(?). 
Genus ZAMITES Brongniart. 
ZAMITES PENNSYLVANICUS Fontaine n. sp. 
Pl. XXVIII, Figs. 3, 4. 
Mr. Wanner referred this plant very doubtfully to Ctenophyllum 
truncatum Font. Professor Fontaine regards it as a new species of 
Zamites and has refigured it (Fig. 4). The following is his description 
of it: 
Schenk, in Foss. Flor. der Grenzschichten, pl. xxxv, fig. 8, gives a figure of a plant 
that he calls Zamites angustifolius. Schimper named it Podozamites angustifolius. The 
plant Mr. Wanner calls Clenophyllum truncatum is very much like this. It is a true 
Zamites, as is shown by the insertion of one entire leaflet seen on it. This shows that 
the leaflets are 3 cm. long, 2mm. wide, and that they are widest near their base, where 
they are abuptly rounded off. They are attached by a callosity to the upper surface 
of the midrib. At their tips they are narrowed to a sharp lancet-shaped termination. 
The nerves are several in number and fine, but were not clearly visible. 
The following is Mr. Wanner’s account: 
Fig. 3, Pl. XXVIII, shows part, a very fragmentary part, of a leaf containing the 
bases of several leaflets. Two other specimens from the same locality, one of which 
contains leaflets only one-half as wide, exhibit certain characteristics easily recog- 
nized in this one. No entire leaflets and no tips of leaflets were found. The oppo- 
site and rather remote leaflets contract near the line of attachment to the rachis, and 
are neither procurrent nor decurrent. Shortly after emerging from the midrib 
many of the nerves fork, after which they continue close together and parallel. 
Were it not for the evident absence of decurrent leaflets the author would refer the 
specimen to Dioonites Buchianus with greater confidence than he feels now in asso- 
ciating it with the partially defined Ctenophyllum truncatum. More specimens are 
needed better to define its characteristics. 
Locality.—Little Conewago Creek, west of Manchester, exploita- 
tion pit. 
ZAMITES YORKENSIS Fontaine n. sp. 
Pl. XXIX, Figs. 1-4. 
Mr. Wanner regarded this as probably representing Ctenophyllum 
Braunianum Gopp., and says: 
In Fig. 1 the leaflets are very close together, overlapping and pushed over the 
rachis in such a manner as largely to conceal the midrib and make it difficult to 
determine the exact manner in which the veins depart from the line of contact. 
Fig. 2 represents a magnified portion of a leaflet and shows the venation. 
ry 
