333 



th 



upward toward the surface of the water ; he compares them to 

 those of other water plants which appear to have a similar means 

 of furnishing themselves with a larger supply of oxygen than that 

 furnished by ordinary means ; among these he mentions the 

 Cypress knees, or aerial roots of Taxodium. 



In a supplementary note to this article the author says, that 

 rough the kindness of Mr. Pammel, of St. Louis, he has learned 

 that plants belonging to the family Lythraceae develop this tissue 

 when growing in swampy places in Missouri, U. S. A. As an 

 example he gives Nescea verticillata, with a short description of 

 Its anatomy. To this brief mention of the American plants of 

 this family may be added a notice printed five years ago in the 

 Bulletin by Dr. Britton, in which he called attention to this 

 peculiar tissue in Nescza verticillata, now so carefully described 

 by Prof Jos. Schrenk. 



E. L. G. 



Barnard College, Nov. 15, 



Index to Recent American Botanical Literature. 



Agarics—North American. Robert K. Macadam. (Journ. Mycol. 



V- 135-I41, continued). 



Thirteen species of the genus Russida are described. 



Algis et Characeis~De. Otto Nordstedt. (Aftryck af Lunds 



Universitets Arsskrift, Tom. xxv. Pamph. 4to, pp. 40, il- 

 lustrated). 



Part three contains descriptions of two new Brazilian desmids, 

 Gynozyga armata and Desmidiiim ciirvattivi, both figured. 

 Araucaria i?nbricata. (Garden, xxxvi. 370, 371, illustrated). 

 Boleti of the United States. Chas. H. Peck. (Bull. No. 8, N. Y. 



State Museum, Pamph. 8vo. p.p. 166, Albany, 1889). 



Some one hundred species are enumerated, included in the 

 three genera Boletinus, Boletus and Strobilomyces. The work is 

 well and clearly printed, with ample margin to the pages, and is 

 a credit to both author and printer. 

 Bojiduc Seeds. H. H. Rusby. (Reprint from Drug. Bull., Oct. 



1889, illustrated). Ccesalpinia Bonducella and C. Bonduc are 



figured. 



7/ the A. A. A. S (Bot. Gaz. xiv. 262-268). 



