74 



on other red algae, but now apparently proven to be parts of 

 the life-cycle of the supposed hosts, as was assumed to be the 

 case by the fathers of phycology. These discoveries the author 

 attributes to Miss B. D. Gregory, but Dr. Kolderup-Rosen- 

 vinge had independently, and apparently at about the same 

 time, reached similar conclusions. The author, by the way, is 

 perhaps more widely known to phycologists as Dr. Lily Batten 

 than as Professor Newton, but the passing of time is doubtless 

 destined to popularize her later name. Most of the genera and 

 probably most of the species of the British marine algae occur 

 also on the northeastern coast of North America and Newton's 

 Handbook will prove almost as useful to students of the marine 

 algae in the eastern United States and Canada as in the British 

 Isles. Marshall A. Howe 



Deam's Trees of Indiana 

 Eleven years ago I had the pleasure of reviewing in this 

 journal Deam's authoritative and attractive book on this sub- 

 ject. Now the fourth edition 1 has appeared, which speaks well 

 for the esteem in which it is held by the people of Indiana. The 

 new edition is but little changed. The whole form of presenta- 

 tion is similar and the text in most cases identical; the plates 

 are the same. A valuable new feature is the inclusion of maps 

 showing the local distribution of almost every species. Four 

 species and one minor form are newly admitted to the list of 

 trees, and Viburnum prunifolium is excluded, apparently be- 

 cause it does not reach the form or stature of a tree. Nine 

 changes in nomenclature were detected, some of which may 

 cause confusion. Quercus Michauxii now becomes Q. Prinus, 

 while the original Q. Prinus becomes Q. montana, Quercus 

 falcata becomes Q. rubra, and the old Q. rubra is presented as 

 Q. borealis var. maxima. More serious in my opinion are some 

 of the changes in the common names, which are probably the 

 ones actually used by nine tenths of the readers of the book. 

 Hill's oak is changed to jack oak, but in my own western ex- 

 perience I have always heard that name applied to Q. imbricaria. 

 Carya cordiformis, called pignut in the older edition, is now 

 called bitternut hickory, and the name pignut is given to Carya 

 glabra. H. A. Gleason 



1 Deam, Charles C. Trees of Indiana. 326 pages, 140 plates, 118 maps. 

 Published by the Department of Conservation, State of Indiana, 1932. 



