199 



t 



* 



promptly produced poisonous effects. But Upon the higher ani- 

 mals, no such effect resulted. 



Some of the results recorded seem very strange as compared 

 with others, and we shall verify and extend the experiments as 

 soon as a supply of the leaves can be obtained. Should it be 

 found that their destructive effect extends to the lowest forms of 

 vegetable life, it may prove that we at last have an agent of de- 

 fense against not only insect pests and parasitical diseases of 

 plants, but against some of the sporadic human diseases. 



H. H. K.. 



Index to Recent American Botanical Literature. 



Avielanchier alnifolia, Nutt. — S. Watson. (Garden and Forest, 



i'- ^Ss, fig. 34.) 

 Anthiirmm Chamberlami, Mast n, sp. (Gard. Chron., iii., 462, 



fig. 6j.) This is a new species from Venezuela. 

 Ashnina triloba, (Garden, xxxiii., 321, illustrated.) 

 Bald Cypress. — How it convej'ts Lakes info Forests. — A. H. Cur- 



tiss. (Garden and Forest, i., 123.) 

 Brodicea Bridgesii, — Sereno Watson. (Garden and Forest, i., 



125, fig. 24.) 

 Bulletin from the Botanical Department of the State Agricul- 

 tural College, Ames, Iowa, — Byron D. Halsted. (Pamph., 

 8vo. pp, 118, four plates, 1888.) 

 'This second of Professor Halsted's bulletins contains de- 

 tailed accounts of the work accomplished at Ames in 1887. 

 Some of the papers have appeared in other publications. Among 

 those here first printed we note " Preliminary List of the Weeds 

 of Iowa," containing 297 species ; '' Oil glands on the Anthers of 

 Cucurbitaceous Plants," "Observations on x alls' ' d. study of 

 dimorphism in the common species, " Notes on Pollen " of 

 numerous plants, '' A Provisional List of Fungi," a '' List of Cah- 

 fornia Parasitic Fungi," observed by Professor Halsted, and 



1 



numerous short notes of interest and importance. 



Calycanthus floridus and C. occidentalis. (Garden, xxxiii, 392, 



illustrated.) 

 Camassia Cusickii. —Set tno Watson. (Garden and Forest, i., 

 172, fig. 32.) 



