DESCRIPTION OF SPECIES. 99 
arctica. Of leaves which are plainly identical with this we find many in 
the upper layers of the Amboy Clays. On PI. XIII asufficient number of 
these are represented to show the prevailing forms and the details of the 
nervation. ‘They are generally much larger than the specimen figured by 
Heer, and the plant which bore them would seem to have been much more 
common in New Jersey than in Greenland. Ettingshausen, who first 
described the Tertiary species referred to, called it C. acuminatus (‘Tert. 
Fl. von Hiring, p. 71, Pl. XXIV, fig. 16), but this name had been antici- 
pated and it was theretore changed by Heer. That species, though evidently 
distinct, is much like the one before us, and they both resemble so closely 
some living species of Celastrus now growing in Australia and the East 
Indies (C. ramulosus, for example)’ that it is highly probable that Heer is 
right in referring them to the genus Celastrus. The oval leaves now fig- 
ured and named Celastrophyllum are, however, quite as closely allied in 
form, nervation, and margins with the living species of Celastrus, such as 
C. scandens, and it would be equally proper to refer these to that genus. 
Doubtless the fruit will some time decide the question, and it is probable 
that they will prove the broad and rounded leaves, rather than the narrow 
ones, to belong to Celastrus, so that it would have been perhaps wiser to 
place them all provisionally in the genus Celastrophyllum. 
Locality: South Amboy. 
CELASTROPHYLLUM CRENATUM Heer. 
Pl XSLWVILT figs: 1-19) 
Celastrophyllum crenatum Heer, Fl. Foss. Arct., Vol. VII, p. 41, PI. LXII, fig. 21. 
Leaves ovate or elliptical, 2™ to 8™ in length by 1™ to 5™ in 
breadth; summit rounded, rarely pointed, not infrequently slightly emargi- 
nate, with a prominent scallop in the center; base wedge-shaped; margins 
closely crenulate or crenulate-dentate, except near the base, where they 
are entire. 
With some hesitation I have adopted for these leaves the name given 
by Professor Heer to one which he has figured and described (loc .cit.) from 
'The name Celastrus ramulosus occurs in Ettingshausen’s Blattskelette, p. 153, Pl. LVIII, fig. 6; 
Pl. LXIL, fig. 8; but I have been unable to find it listed in any work on Australian or East Indian 
floras to which I have access.—A. H. 
