250 OLDER MESOZOIC FLORAS OF UNITED STATES. 
Mr. Wanner determined this plant correctly, following Professor 
Fontaine in the use of the synonymy P. Braunti of Endlicher. As 
Endlicher founded the genus Palissya on the plants that Braun called 
Cunninghamites sphenolepis and carefully described and figured in two 
prominent places, he had, of course, no right whatever to change 
Braun’s specific name. 
Professor Fontaine says: - 
There are numerous fine specimens of P. Braunii in My. Wanner’s collection. 
Some of them are better and larger than any previously known to me. One of these 
large specimens shows a feature not seen by me on any previously known fossils. 
The young, undeveloped branches are seen in the axils of the leaves. Fig. 2, PI. 
XXXII, represents one of these forms, and Fig. 1, of the same plate, gives a good 
representation of one of the large fragments. 
The following is Mr. Wanner’s account: 
Part of a large limb, Fig. 1, Pl. XX XII, containing broken branches and leaves in a 
fairly good state of preservation, exhibits the characteristics of the plant as presented ~*. 
in this and other specimens. Fig. 4 represents a leaf magnified to show the venation. 
The midrib is prominent. The leaves are decidedly decurrent and, when not pushed 
out of place or macerated, as is frequently the case, are uniformly and strongly fal- 
cate. Another specimen, Fig. 2, only part of the impression in the shale, presents a 
different phase and well illustrates the changed appearance caused by the presence of 
young shoots. Fig. 5 illustrates part of another limb containing fewer young branches 
of greater length than those shown in Fig. 2. Another specimen, Fig. 3, natural 
size, shows the leaf scars. 
The descriptions of Palissya Braunii, to which the author has had access, are very 
meager and unsatisfactory, hence, notwithstanding the fact that his specimens are 
well defined, he is unable to assert, with any degree of certainty, that the plant 
belongs here. It strongly suggests Sequoia Reichenbachi. 
Localities.—Y ork Haven, N. C. R. R. cut; Little Conewago Creek, 
exploitation pit and lowest horizon. 
Pauissya DIFFUSA (Emmons) Fontaine. 
Pl. XXXI, Figs. 3-5. 
1856. Walchia diffusus Emm.: Geological Report of the Midland Counties of North 
Carolina, p. 333, pl. iii, fig. 2. 
1857. Walchia (Lycopodites) diffusus Emm.: American Geology, Pt. VI, p. 105, pl. iii, 
fig. 2. 
1857. Walchia gracile Emm.: American Geology, Pt. VI, p. 108, fig. 75. 
1883. Palissya diffusa (Emm.) Font.: Older Mesozoic Flora of Virginia, Mon. U. 8. 
Geol. Survey, Vol. VI., p. 107, pl. li, fig. 4. 
1883. Cheirolepis Muensteri (Schenk) Schimp. in Fontaine: Op. cit., p. 108, pl. liii, fig. 3. 
Of this Professor Fontaine says: 
Mr. Wanner has correctly determined this plant, of which he has a number of very 
fine specimens. Some of them are much finer than any obtained by even Emmons 
from the North Carolina beds. There is some difference between the Pennsylvania and 
the North Carolina fossils. The Pennsylvania specimens do not show such a marked 
recurving of the leaves as those from North Carolina, and the midnerve of the 
