308 OLDER MESOZOIC FLORAS OF UNITED STATES. 
largest are 5 mm. long and a little over 1 mm. in width. Jn form they 
are linear-oblong, with obtuse tips. _ They are in two rows, with slightly 
decurrent bases that overlap one another. The leaves are slightly 
faleate and their texture is thick and leathery. They have a distinct 
but slender midnerve running to their tips. 
To judge from the portions of ultimate twigs that are preserved, they 
must have been longandslender. It is possible that this may be a small 
form of Palissya Braunii, but the differences in the leaves are too many 
and great for one to regard it as a species. It seems best to regard it 
as a species of Palissya, retaining Emmons’s specific name brevifolia, 
which is applicable. In Mon. U. S. Geol. Survey, Vol. VI, pp. 107, 
108, I stated that I regarded it as Chetrolepis Muensteri Schimp. This 
opinion was based on Emmons’s figure of the plant, which makes the 
leaves too acute at their tips and misses their shape. 
There are two previously described plants which are sufficiently 
like this fossil to suggest an affinity, but not specific identity. One is 
Cyparissidium septentrionale (Agardh) Nath.t The form shown in 
Nathorst’s fig. 10 is most like our plant. The other is Palissya con- 
JSerta Feistm.* Feistmantel’s fig. 6, pl. xlv, gives the form of P. con- 
Jerta that is nearest to the North Carolina fossil. 
Genus PAGIOPHYLLUM Heer. 
PAGIOPHYLLUM PEREGRINUM (Lindley and Hutton) Schenk. 
PL XLVI. 
1833. Araucaria peregrina L. and H.: Foss. Fl. of Great Britain, Vol. IT, p. 19, pl. 
lxxxviii. 
1849. Brachyphyllum peregrinum (L, and H.) Brongn.: Tableau, p. 69. 
1857. Walchia variabilis Emm.: American Geology, Pt. VI, p. 108, fig. 76. 
1870. Pachyphyllum peregrinum (L.and H.) Schimp.: Traitéde Paléontologie Végétale, 
Vol. IL, p. 250. 
1884. Popiophylum peregrinum (L. and H.) Schenk in Zittel: Handbuch der Pale- 
-ontologie, Abth. II, p. 276, fig. 192a. 
Emmons gives, on page 108, fig. 76, of his work, a description of a 
plant which he calls Walchia variabilis. The specimen figured by him, 
and another containing a number of ultimate twigs of this conifer, are 
in the Williams College collection. The imprint figured is 4 cm. longer 
than his figure represents it to be. In Mon. U.S. Geol. Survey, Vol. 
VI, p. 108, I stated my conclusion, judging from this figure, that the 
plant is Pagiophyllum peregrinun, the Araucaria peregrina of Lind- 
ley and Hutton. An inspection of the original and of the other speci- 
men confirms me in that conclusion. Emmons’s figure does not give 
very well the facies of the specimen drawn. The facial leaves show 
1 Floran vid Héganis, p. 29, pl. iv, figs. 4-15. 
? Foss. Fl. Gondw. Syst., Vol. I, Pt. II, Pal. Indica, 2d series, pp. 85-86, pl. xxxii, figs. 9, 10; p]. xlv, 
figs. 4-8, 8a; pl. xlvili, fig. 4. 
