81 



several imperfect specimens of Newberry's leaf were found, which 

 were characteristic enough to prove that it had come originally 

 from the Pleistocene and is not a member of the Cretaceous flora. 



The recognizable plant retnains are contained in an interbedded 

 stratum of very compact clay, which is considerably lighter in 

 color than the bulk of the clay and dries to a buff-drab color. 

 The horizon is the same as that carrying the abundant Unios 

 and Anodontas for which the locality is famous. The largest 

 fragment of a Tilia leaf is 12 cm, long and 6.5 cm. wide and 

 lacks the tip and a large part of the margin. Together with the 

 shell of a huge Anodonta, or freshwater clam, 15 cm. by 9.5 cm., 

 it forms a cleavage plane in the hard clay, one side of the leaf 

 being concealed by the ventral margin of the clam shell. 



It seems desirable that this leaf shall be transferred to the 

 modern genus, and while it undoubtedly represents a still exist- 

 ing species, either Tilia ainericana L. or Tilia lieteropJiylla Vent., 

 it has not been possible satisfactorily to determine which, so that 

 Newberry's specific name may stand, at least for the present. 

 This will give us the following as the correct citation for this 

 species : 



Tilia dubia (Newb.) 



TiliacpJiylhiui djibiwn Newb. Fl. Amboy Clays, 109. //. 75. 

 /. 5. 1896. Woolman, Ann. Rep. State Geol. N. J. 

 1896 : 212. 1897. 



Edward W. Berry. 

 Baltimore, Md. 



REVIEWS 



Henshaw's Mountain Wild Flowers of America* 



This beautifully illustrated book will prove of great interest 

 and usefulness to those who contemplate spending a summer 

 vacation in the -higher mountainous regions of North America. 

 What the full-page illustrations of mountain flowers do not sup- 

 ply, when it is desired to identify some interesting alpine plant, 

 the brief, but terse, descriptions will furnish. As the book is in- 

 tended for the general public, the plants are not arranged scientifi- 



* Henshaw, Julia W. Mountain Wild Flowers of America. Pp. i-xxi -|- 1-384. 

 PI. 1-99. Ginn & Co. , Boston. 1906. 



