Floristik, Geographie, Systematik etc. 111 



twigs and buds. The description of each tree includes a Statement 

 as to its distribution in Pennsylvania. Harshberger. 



Jepson, W. L., Forests of the Pacific Coast. (Nature and 

 Science on the Pacific Coast. p. 159—167. 1915.) 



The principal forest trees of the Sierra Nevada mountains, 

 the Cascades, the alluvial plains of the Sacramento are con- 

 sidered. The big trees and redwood trees are described in detail. 

 The forests of Oregon and Washington are noted. References 

 to literature and the chapter. Harshberger. 



Miller, W. H., Hardwoods on the Country Estate. (Amer. 

 Forestry. XXL p. 780—791. July 1915.) 



This paper is a collection of notes on the growth reproduction 

 for flowers and fruit of such trees as Liriodendron, Tilia, Liquidum- 

 bar, Nyssa, Corniis and Fagus grown for the embellishment of 

 country estates. Illustrations add to the value of the notes, 



Harshberger. 



Paulsen, O., Some Remarks on the Desert Vegetation of 

 America. (Plant World. XVIII. p. 155— 161. June 1915.) 



The author, who was a member of the International Phytogeo- 

 graphic Excursion in America, gives a short comparative account 

 of his investigation of American desert conditions. His definition 

 of deserts are plant formations the soll of which is devoid of humus 

 or very poor in it and contains often sulphates or Chlorides. The 

 formations are very open and they frequently include trees and 

 shrubs, which together with long-lived herbs are strongly adapted 

 to drought. Spring plants are numerous. Desert thus defined in- 

 cludes, presumably, all that in America is called desert from 

 the sage brush plains to salt flats, sand deserts and the shrub 

 and cactus desert in Arizona. Using the published papers of 

 Shantz, Briggs, Mc Lane Piemeisch, Spalding and Pa- 

 rish, the author constructs a biologic spectrum, according to the 

 System of Raunkiaer, for Akron, Tooele Valley, Tucson 

 and Salton Sink. Harshberger. 



■ fe' 



Standley, P. C, Vegetation of the Brazos Canyon, New 

 Mexico. (Plant World. XVIII. p. 179— 191. July 1915.) 



After a brief account of his itinerar5^ the author describes the 

 Vegetation of the Canadian Zone, the transition Zone (typical and 

 lower divisions) with mention of the principal trees shrubs and 

 herbs found in each zone. Harshberger 



Sterling, E. A., California Tree Novelties. Part 1. (Amer. 

 Forestrv. XXI. p. 768-778. July 1915; Part 2. p. 853—860. August 

 1915.) 



The first paper deals with the general distribution of the 

 forests of the Pacific coast and a general Statement as to the 

 diversity of conditions with Jolin Muir quoted. The second part 

 treats specifically of the Sequoias, the Montery cypress, Monterey 



