246 OLDER MESOZOIC FLORAS OF UNITED STATES. 
Professor Fontaine sees in it another new species of Zamites, and 
has refigured the same specimen (Figs. 3, 4) to give his interpretation 
of it. He describes it as follows: 
On the fragment of slate that shows the imprint of Txniopteris? yorkensis, there is 
an imprint of what seems certainly to be a true Zamites of the type of Z. Feneonis, 
which type characterizes the Jurassic. This plant may be the form depicted by Mr. 
Wanner in Fig. 1, Pl. XXIX. Ifso, thefigure does not correctly represent the insertion 
of the leaves. It should also be stated that then the identification of the plant given 
in that figure with Clenophyllum Braunianum var. a iserroneous. The description of 
the plant now in question is as follows: _ 
The specimen is a portion of a leaf showing a number of leaflets, some of them 
entire. The leaves are closely placed, about 25 mm. long, 4 mm. wide, and widest 
at base. They taper to a subacute tip. At base they are slightly auriculate and are 
inserted on the upper surface of the midrib. The nerves are fine and closely placed. 
They are not distinct enough to show the details. Fig. 3 represents the specimen 
of natural size, and 4 gives a leaflet enlarged 2 diameters, and partly restored. This 
and the preceding constitute the first species of Zamites found in the older Mesozoic 
flora of the Eastern States. 
Genus PODOZAMITES Friedrich Braun. 
Popozamitss pisTans (Presl) Friedrich Braun ? 
Pl. XXIX, Figs. 5-7. 
1833. Zamites distans Presl in Sternberg: Flora der Vorwelt, Vol. II, p. 196, pl. xli, 
fig. 1. 
1843. Podozamites distans (Presl) Friedrich Braun in Minster: Beitrige zur Petrefac- 
tenkunde, Vol. II, Pt. VI, p. 28. 
Mr. Wanner identified this doubtfully with Zamites tenuinervis 
Font. Professor Fontaine says: 
These are not Zamites tenuinervis, but fragments of some other Zamites or Podoza- 
mites. The fragments are too obscure to determine fully. The smaller fragment is 
like Schenk’s Zamites distans (Podozamites distans), as given in Foss. Flor. der Grenz- 
schichten, pl. xxxvi, figs 1-9, 9a, 9b. The larger resembles the variety given in fig. 
10 of the same plate. 
Mr. Wanner has the following note: 
Figs. 5 and 7 of Pl. XXIX show parts of detached leaflets containing the remains of 
basal ends exhibiting properties which agree with those described by Fontaine. No 
whole leaves and no tips were found. 
Fig. 6 shows the venation. The veins are parailel, very fine and close, being about 
one-tenth of a millimeter apart. The surface of some leaflets presents a regularly 
banded appearance, owing to the prominence of stronger nerves, about one in five. 
Locality. —Little Conewago Creek, lowest horizon. 
