DISEASES OF PLANTS. 233 



Peach yellows and peach rosette, E. F. Smith (U. S. Dept. J(/r., Furmcru' BiiJ. 

 17, pp. 20, firjs. 7). — A ijopular bulletin prepared iu the Division of A'egetablo Pathol- 

 ogy, giving information as to the tlistributiou, description, means of spreading, 

 and preventive measures adopted against peach yellows and peach rosette. In an 

 appendix to the bulletin the Connecticut and Pennsylvania laws relating to peach 

 yellows are given. A more technical bulletin on these diseases was issued by the 

 division as Bulletin 1 (E. S. R., 3, p.48.'5). 



The broom rape of hemp and tobacco, H. Gakman (Eentiicki/ Stu. Ept. ISOO, pp. 

 5r-7.?,./(>s. 5).— Reprint of Bulletin 24 of the station (E. S. R., 2, p. 22). 



^cidiima asperfolii, H. Wigley (Gnrd. ChroH.,16 {1S94), ser. 3, p. ^^^^).— Report 

 of linding- this, the iecidium stage of Piiccinia rubigo-vera, on Lycopsis arvvims. 



A new Australian fungus, N.A.Cobb {Afjl. Gaz. N. S. IV., 1894, June, p. 300, fig. 

 1). — A I'ezi^d found on a species of Lyonsia, probably L. reticididd, is described and 

 the name P. LyonnUe is proposed. 



Notes on the Exoasceae of the United States, G. F, Atkixsox ( Torrey BuL, 21 

 {1S94), No.S, pp. 372-SSO). — Critical notes are given on many of the prominent spe- 

 cies, together with descriptions of the following new species: Exoaxcus confnsns, E. 

 Jo)}g\pe», E. decipiens, E. decipicns siqyerficiaJis, E. mirabiliii, E. mirabili-'i lortilis, E. 

 y]ii:ipes, E. r(irius,E. vec'idomophUus, and E. au>itraVif!. 



A new gummosis of Carpinus betulacea and a disease of chestnut, F. Ludwig 

 {Centbl. Bahf. it. Par., 16 {1S04), No. 2, pp. 5S-61). 



Influence of humidity of calcareous soils on the development of chlorosis, 

 HOUDAILLE and Mazade (Compt. Bend., 119 (1894), No. 4, j^p. 304-307).— Chlorosis 

 seems dependent upon amount of lime in soil, fineness of soil, and its humidity. In 

 general the amount of chlorosis seems to be inversely proportional to the degree of 

 saturation of the soil. 



Anew sclerotium-forming Peniciliivim,C. 'Wewm'eii {Hedwlgia, 33 {1894), No. 4, pp. 

 212-214). — PeniciU i am italic It m is described as a new species of sclerotium-forming mold. 



Puccinia ribis, C. B. Plowrigiit (Gard. Chron., 16 (1894), ser. 3, p. 135). — Account 

 of the a[)[)earance of tliis fungus in Scotland. Tlie author states that this is not the 

 puccinia stage of JLcidinm groasitlario', as is frequently claimed, and that it is never 

 found on the gooseberry. 



Puccinia winteriana, P. Sydow (Hcdioigia, 33 {1894), No. 4, p. 203). — Brief notes 

 on the botanical relationship of this species. 



New Californian Uredineae, II, P. Dietel (Erythea, 2 (1894), No. 8, pp. 127-129). 



Sclerotinia in Alnus fruits, R. Maul {Hedwigia, 33 {1894), No. 4, pp. 215-228, 

 ph. 2). — Description and life history of <S'. ahii. 



New species of Uredineae and Ustilagineae, ^with notes on other species, II, 

 P. Dietel {Bot. Ga:., 19 {1894), No. 8, pp. 303-306, pi. 1). 



Notes on Uromyces cladii, B. D. Halsted ( Torrey BuL, 21 {1894), pp. 311-313).— 

 Account of a rather unusual distribution on its hosis, Arisama triphyUuiu and I'el- 

 tandra rirgitiica. 



Begonia diseases, B. D. Halsted (Amer. Florist, 10 {1894), p. 117, figs. ?).— The 

 author figures and describes a nematode and a fungus disease of begonia leaves. 



Cane disease {Boy. Bot. Gard. Trinidad, Misc. BuL 23, pp, 2S7-289 ) .—Reiwrt of 

 correspondence showing the presence of fungus diseases of cane as early as 1878. 



Diseases of the grape, G. Massee {Gard. Chron., 16 {1894), ser. 3, p. 75, figs. 2). — 

 Illustrated notes on downy mildew {Plasmopara viticola) and a "spot" disease due 

 to Glccosporium sp. 



The black rot of grape, B. Battanchox {Prog. Agr. et Tit., 11 {1894), pp. 80, 

 87). — Report of appearance of black rot in Saone-et-Loire. 



Conditions of the development of rougeot on the leaves of grapes, A. 

 Rexault {Compt. Rend., 119 {1S94), No. 3, pp. 247, 248). 



Vine leaf clubbing, B, Piffaiid {Gard. Chron., 16 (1894), ser. 3, p. 136).— Tiim- 

 ming the vines in autumn and washing with a solution of iron sulphate, 1 oz. iu 1 

 pint of water, prevents attacks of browning, or " bruunre," due to Myxomycetes sp. 



6210— Xo. 3 5 



