DESCRIPTION OF SPECIES. 111 
EucaLyprus? arrenuata Newb. n. sp. 
Pl. XVI, figs. 2, 3, 5. 
Leaf 10™ to 15™ in length, narrowed or rounded at the base, pointed 
or attenuated at the summit, margin entire; nervation strongly reticulate. 
Numerous leaves of this species occur, generally in an imperfect 
state of preservation. The nervation, however, is nearest that of Eucalyp- 
tus, or at least of the leaves so designated by Heer from the Atane beds of 
Greenland. 
More material will be required before the generic affinities can be 
positively asserted. 
Locality: South Amboy. 
EucaLyPTus? ANGUSTIFOLIA Newb. n. sp. 
12 2O:.@:G0TE iets SG. Te 
Leaves long linear, pointed above, attenuated or rounded below, from 
10™ to 15™ long, 8" to 127" wide, margins entire; nervation rather 
crowded, midrib slender, side branches numerous, leaving the midrib at an 
acute angle and forming a festoon close along the margin. 
These leaves apparently belong to the same genus as those that have 
been called Eucalyptus by Heer in his Flora Fossilis Arctica, Vol. VI, 
Abth. II, pp. 93, 94, Pl. XLVI, figs. 12-14. The general form of the leaf is 
similar, and the peculiar nervation—that is, numerous lateral nerves uniting 
to form a continuous festoon closely parallel with the margin—is essentially 
that of Eucalyptus. Professor Heer feels strengthened in his reference of 
leaves having this nervation to Eucalyptus by finding in company with 
them what he regards as the fruit of Eucalyptus; but in my judgment the 
examples he gives of this fruit (op. cit., loc. cit., and Pl. XLV) are rather 
detached scales of the cone of some conifer, and probably generically 
identical with the cone scales which he has called Dammara borealis (op. 
cit., pp. 54, 55, Pl. XX XVII, fig. 5). The fruit of Eucalyptus is a pyxis 
or urn, circular in section, and with a lid; but in the large number of 
specimens of organisms which I have found in the Amboy Clays and 
