238 OLDER MESOZOIC FLORAS OF UNITED STATES. 
__ As Professor Fontaine has said, Mr. Wanner regarded these speci- 
mens as small forms of Macroteniopteris magnifolia, and in discussing 
the larger leaves he almost entirely neglected, to comment on them 
after having drawn them. The following is his only allusion to them: 
Parts of leaves from the Conewago locality are shown in Figs. 4-6, Pl. XXII. The 
only tip found and illustrated, Fig. 6, Pl. XXII, is somewhat obscure, whilst no basal 
ends have been obtained from here. 
Genus MACROTAZINIOPTERIS Schimper. 
MAcROT2NIOPTERIS MAGNIFOLIA (Rogers) Schimper. 
Pl. XXII, Figs. 7-9; Pl. XXII; Pl. XXIV. 
1848. Teniopteris magnifolia Rogers: Philadelphia Association of American Geologists 
and Naturalists, 1848, p. 306, pl. xiv, unnumbered fig.on the right, } nat. 
size. 
On this species Professor Fontaine remarks: 
Mr. Wanner has in his collection several good specimens of this plant. On Pl. 
XXIV he gives a good representation of a portion of a leaf of the largest size. Fig. 
7 of Pl. XXII gives a form that is probably M. magnifolia. It may, however, well 
be some larger Tzeniopteris, like J. superba. 
Mr. Wanner took a special interest in this species and gives the fol- 
lowing descriptive account: 
No impressions of whole leaves were found. Pl. XXIV shows part of a large leaf 
with a truncate termination. Figs. 2 and 3, Pl. XXIII, are ends of other leaves, in all 
cases truncate. Whilst impressions of different parts of leaves are very common at 
the York Haven locality, strange to say, no tips similar to those which one would 
expect to find were observed. All ends, as shown, were truncate. 
Figs. 8 and 9, Pl. XXII, are illustrations of typical bases. The side of one is entire, 
that of the other nearly so. . 
Fig. 1, Pl. XXIII, shows the venation. The nerves are fine, parallel, and about one- 
third of a millimeter apart. In nearly all of the specimens the forking of the nerves 
is not evident; on the contrary, they seem to be single and parallel to the point of 
insertion; but in a few specimens, by closer inspection, nerves are seen that fork very 
close to the point of attachment, and apparently within the rachis. 
Fontaine calls attention to the difference in shape of the specimens which he 
examined, a peculiarity which is strikingly presented in the specimens from these 
two localities. 
Locatities.—_N. C. R. R. cut, south of York Haven; Little Conewago 
Creek, exploitation pit. 
Genus PSEUDODANZOPSIS Fontaine. 
PsEUDODANZOPSIS PLANA (Emmons) Fontaine. 
Pl. XXV, Figs. 1, 2. 
1857. Strangerites planus Emm.: American Geology, Pt. VI, p. 122, fig. 90. 
1883. Pseudodanexopsis reticulata Font.: Older Mesozoic Flora of Virginia, Mon. U.S. 
Geol. Survey, Vol. VI, pp. 59, 116, pl. xxx, figs. 1, 2, 2a, 3, 4, 4a; pl. liv, 
fig. 3. 
