418 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



This leaf, althougli perfect in outline, does not show, clearly, 

 the secondary nervation that might definitely determine its exact 

 systematic status. In its general appearance, however, it is so 

 strongly suggestive of the leaves of certain existing species of 

 blueberry and hucklelierry that I have but little hesitation in so 

 referring it, generically. In particular it may be compared with 

 leaves of Vaccinium corymbosum Linnaeus, which species was 

 described and figured in the fossil form by the writer," the iden- 

 tification being based upon siDecimens from deposits of Pleisto- 

 cene age in Maryland. 



Vaccinium corymhosum was also identified liy Berry*' in 

 Pleistocene deposits of Alabama, Maine, and North Carolina; 

 but in no instance do the figures of the specimens show any indi- 

 cation of the fine denticulation that characterizes ours. It should 

 be noted, however, that leaves of Vaccinium corymbosum, in con- 

 nection with its several forms or varieties, vary somewhat in 

 shape and may be either entire or minutely denticulate. 



Botanical discussion 



An analj^sis of the flora of the Saint Eugene silts, thus far 

 identified, indicates that it was composed mostly of dicotyle- 

 donous angiosperiiis. No trace of any gymnosperms, pterido- 

 phytes, or any lower forms of vegetation were discovered, and 

 only fragmentary remains of two, .generically unidentifiable, 

 monocotyledons. 



The Dicotyledonae number thirteen genera and sixteen spe- 

 cies, all but one of which are included in the Choripetalae. The 

 Fagales is the order most extensively represented, in which the 

 family Betulaceae includes one species in the genus Betula and 

 one in Almis, and the Fagaceae two in Fagus and two in Quer- 

 cus. The order Urticales is represented only by the Artocar- 



46 Hollick, Arthur. Md. Geol. .Survey, Pliocene and Pleistocene, p. 236, pi. 69, 

 figs. 7-9. 1906. 



Berry, E. W. (a) Additions to the Pleistocene flora of Alabama. Amer. 

 Jour. Sei. vol. 29, p. 398. 1910. (b) Pleistocene plants in the marine clays of 

 Maine. Torreya, vol. 17, p. 161, text fig. 1. 1917. (c) Pleistocene plants from 

 North Carolina. U. S. Geol. SuiTcy. Prof. Paper 140-C, p. 116, pi. 57, figs. 8, 9. 

 1926. 



