290 OLDER MESOZOIC FLORAS OF UNITED STATES. 
Genus PTEROPHYLLUM Brongniart. 
_PreropHytLum DaLEaNum Ward nom. noy.' 
1857. Pierozamites pectinatus Emm.: American Geology, Pt. VI, p. 117, fig. 84. 
1883. Pterophyllum pectinatum Font.: Older Mesozoic Flora of Virginia, Mon. U. 8. 
Geol. Survey, Vol. VI, p. 112, pl. liii, fig. 4. 
In American Geology, Pt. VI, p. 117, fig. 84, Emmons gives a 
description of a cycad which he calls Pterozamites pectinatus. The 
type specimen is in his collection, and fig. 84 gives a very accurate 
delineation of it. .In Mon. U. S. Geol. Survey, Vol. VI, p. 112, I 
expressed the opinion that it is a new Pterophyllum, near to P. 
Lyellianum of Dunker. An examination of the fossil shows that it 
is a true Pterophyllum, and a new species. It isa beautiful specimen, 
and remarkably well preserved for so delicate a plant. As Emmons 
says, the leaflets are narrow, many nerved, and stand at right angles 
to the strong midrib. It may be added that they are obtuse at their 
tips, and are thin in texture. They are a little over 1 mm. wide and 
2 cm. long, and stand close together. 
Genus ANOMOZAMITES Schimper. 
ANOMOZAMITES ? EGYPTIACUS Fontaine n. sp. 
Pl. XXXIX, Fig. 5. 
One of the few plants that Emmons obtained from the coal-bearing 
portion of the Older Mesozoic of North Carolina is the fine specimen 
of what he calls Sphenopteris egyptiaca. On the slab which bears this 
specimen is a rather obscure imprint of a fragment of what seems to 
have been a large leaf. It shows only a portion of the lamina or leaf- 
lets on one side of the midrib. None of the latter are certainly 
preserved, for the leaflets, in part, seem to have been torn off close to 
it. In one or two of the supposed leaflets there is an indication that 
a thin strip of the midrib is still preserved. The segments look in 
some respects much like Pterophyllum affine Nath., which occurs in 
the Virginia beds.* It resembles this plant in its fine, parallel, single 
nerves, which go off at right angles with the midrib, but is unlike it 
in the great inequality of its leaflets. These stand at right angles 
with the midrib, and have their margins parallel. They do not show 
1Both the earlier names are anticipated. Brongniart (Tableau, 1849, p. 62) says that his Zamites 
pectinatus (Zamia pectinata, Prodrome, 1828, p. 94) is a Pterozamites, and a number of authors have 
referred this same plant from the Oolite of Stonesfield, in England, to the genus Pterophyllum. 
The earliest such reference that I have been able to find isin the Précis élémentaire de Géologie, par 
J.J. @’Omalius d’Halloy, Paris, 1843, p.481. It is true that these are all synonymys of Sternberg’s Poly- 
podiolites pectiniformis (Flora der Vorwelt, Vol. I, fasc. iii, 1823 p. 39, pl. xxxiii, fig. 1), but for that 
reason as well as for others the specific name must be dropped. 
In naming this elegant species for Dr. T. Nelson Dale, I wish to express a small part of the grati- 
tude that all who are interested in the subject feel toward him for bringing to light, in the manner 
described, this long-lost scientific treasure—the Emmons collection. L. F. Ww. 
2Mon. U.S. Geol. Survey, Vol. VI, p. 66, pl. xxxii, figs. 2-4. 
