V 
Number IV. 
Page. 
Contributions to the History of the Development of the Pyrenomy- 
cetes (Plate XIII), by Franz Von Tavel. 181 
Mycological Notes (Plate XIV), by George Massee. 184 
A Preliminary List of the ERYSiPHEiE of Montana, by F. W. Anderson 188 
Status of Sorghum Blight, by Kellerman and Swingle. Note by T. J. Bur- 
rill. 195 
Root Fungus of New Zealand, by R. Allan Wiglit. 199 
Some Notes upon Eco'nomic Peronospor^e for 1889 in New Jersey, by 
Dr. B. D. Halsted. 201 
Prevalence of Ergot in 1889, by Dr. Erwin F. Smith. 203 
An Experiment in the Treatment of Black-rot of the Grape, by B. T. 
Galloway.... 204 
Erysiphe.e upon Phytoptus Distortions, by F. W. Anderson and F. D. 
Kelsey. 209 
Treatment of Apple-scab, by B. T. Galloway and E. A. Southworth. 210 
Notes, by B. T. Galloway. 214 
Powdery Mildew of the Bean.—Rust of Flax.—Necessity for a rede¬ 
scription of the type species in Kew Herbarium.—New localities 
for Peronospora Cubensis, B. & C. 
Reviews of Recent Literature. 216 
Traitement du Mildiou (Georges Beucker). UeberRostpilz, deren Te- 
leutosporen kurz nach ihrer Reife keimen (Dr. Paul Dietel). Pre¬ 
liminary Report on Smut in Oats (Kellerman & Swingle). Study 
of Montana Fungi (F. D. Kelsey). Traitement du Black-rot (A. de 
L’Ecluse). Boleti of the United States (Charles H. Peck). A New 
American Phytophthora (Roland Thaxter). Die Pilze des Apriko- 
senbaumes (Felix von Tliiimen). Une Mission Viticole en Amerique 
(P. Viala). Contributions ala Pathologie Vdg^tale (J. H. Wakker). 
Traitement de la Maladie des Pommes de Terre, des Tomates et 
des Melons par les Sels de Cuivre (Ed. Zacharewicz). 
Explanation of Plates . 228 
Index . 229 
