y y x j 
1883.] 
Entomology. 545 
certain conditions zoogonidia may be produced by vaucheria, and 
iggests the need of careful re-examination of all the species. 
—-Wn, Trelease has published an interesting paper “On the 
Structures which favor Cross-fertilization in Several Plants” 
(Proc. Bost. Soc. Nat. Hist.), in which many curious facts are 
brought together. Three plates accompany the paper, and add 
much to its value. Professor Grant Allen’s paper on “ The 
A flowering plant, new to 
science, from North Wales, has just been described by Arthur Ben- 
Zona region. Among these are Astragalus hypoxylus Wats., Mi- 
mosa lemmoni Gr., Stevia plummere Gr., S. amabilis Lemmon, 
beri Gr., Z. lemmoni Gr., Z. cuneifolia Gr., Verbena arizonica Gr., 
Euphorbia plummere Wats., Microstylis purpurea Wats., etc.—— 
Ravenel’s Centuries vir and vit of Fungi Americani, have been 
received. They contain many interesting species described or no-. 
ticed in recent ‘numbers of Grevillea. 
ENTOMOLOGY.’ 
: RAILROAD CARS AS A MEANS OF DISSEMINATING Motus.— 
-Ve you ever thought of the railroads as a means of disseminat- 
Ing Noctuidze ? Traveling more than usual the past fail and 
Summer, I was often struck with the numbers of Aletiz on the 
tains. There were probably many others on the outside flutter- 
ing at the lights or at rest upon the cars. I do not give it as 
of great value or by any means conclusive; but there has 
* This department is edited by Pror. C. V. Rrrey, Washington, D. C., to whom 
ications, books for notice, etc., may be sent. 
