Nov., 1914.] Publications of Ohio Biological Survey. 375 



The nomenclature used is that of Britton & Brown's Illustrated 

 Flora, second edition, the sequence of species following strictly 

 the author's phyletic classification. With reference to TipuJaria 

 unifolia we would suggest that reference should have been made 

 to its occurrence in Ashtabula County as discovered in 1911 by 

 R. J. Sim. (Torreya 12:107-110. May, 1912. 



Bulletin 3, ''A Botanical Survey of the Sugar Grove Region," 

 by Prof. Robert F. Griggs, is an excellent treatment of the eco- 

 logical relations of the vegetation of the "vSugar Grove region," 

 a rolling upland cut up with numerous deep ravines, and extending 

 in a north and south direction for about twenty miles in Fairfield 

 and Hocking counties, south central Ohio. The region is imme- 

 diately south of the glaciated region and ma}^ be considered as 

 an outlier of the Appalachian Plateau. 



To one familiar with the vegetation of the Appalachian 

 Plateau in western Pennsylvania the Botanical Survey of the 

 Sugar Grove Region reads almost like a survey of some of the 

 quite similar areas to be found in the first-named region. The 

 less important place occupied in the Sugar Grove Region by 

 Rhododendron, Kalmia latifolia, Castanea and Robinia Pseudacacia 

 and the absence of Pinus Strobus and Azalea nudiflora, is balanced 

 by the presence of Hypericum Drummondil, Napaea dioica and the 

 greater prominence of Oxydendrum, Acer Negundo, SulUvantia, 

 Quercus macrocarpa, Dodecatheon, Diospyros, etc. Altogether the 

 associations could be applied almost as well in the one region as 

 in the other, but with the eastern species thinning out westward 

 and a number of more northern species reaching into the Sugar 

 Grove Region. Prof. Griggs is to be complimented upon the 

 excellent manner in which he has accomplished this survey. It is 

 to be regretted very much, however, that the proof-reading was 

 not more carefully done. In a rather causal examination errors 

 were noted in the scientific names to the number of sixty-six; on 

 page 280, six out of twenty-seven names in one list being incor- 

 rectly spelled. We sincerely hope that more attention may be 

 paid to the proof-reading in the future nimibers of the survey, 

 the present numbers being otherwise printed in a highly satis- 

 factory manner. 



O. E. Jennings. 

 Carnegie Museum, October 9, 1914. 



