328 



DAWSON ANh I'EXIIAI.I.oW — PLEISTOCENE FLORA. 



form and venation suggest Platanus, and a specific name indicating this 

 k semblance would be appropriate, were not some of the existing species al- 

 ready bo distinguished. It is to be regretted thai this is the only specimen 

 so far found in a fairly complete condition, since it is unsatisfactory to base 

 conclusions upon a single specimen where there i> opportunity for variation. 

 The modern maples with which the fossil is most nearly comparable arc 

 Acer rubrum and .4. ji/afnnoides. In its general outline, the fossil is broadly 



, — r- 

 - / 



I i..i u L— At urn. 



ovate and, if W6 follow 1 1 1 < - same ride as in other maple leaves ID re-peel to 



the number of lobes being determined by the palmate distribution of the 

 principal veins, three lobed ; bul the terminal lobe has two prominenl lateral 

 lobes, while the others have each a .-mall basal lube, all Bomewhal Btrongly 

 defined and making the leaf appear seven lobed. The lobes are all very 



