444 
Mulberry tree, fungus affecting, 325. 
Muscardine on cabbage worms, 314. 
Mushrooms— 
anatomy, 186. 
casts of, at Chicago Exposition, 153. 
culture, 153, 185, 186. 
false, sold in market, 400. 
force of growth, 423. 
life history, 186. 
notes, 153,186,187,427. 
of Japan, 426. 
of the United States, edible and poisonous. 187. 
varieties sold in market, 400. 
Mycomycetes, definition, 389. 
Myriostoma coliforme , in Florida, 42 1 . 
Myrobolan plum, budded— 
effect of ammoniacal copper carbonate, 254. 
effect of Bordeaux mixture, 254. 
experiments, 253. 
Myxomycetes— 
method of preserving and collecting, 194. 
new American, 193. 
N. 
Nasturtium, disease, 305. 
Nectarine— 
action of rust, 355. 
splitting, 404. 
Neosho, Mo., experiments, 16. 
Nessler s powder, formula, 174. 
New York State botanist, annual report, 147. 
New Zealand— 
edible fungus, 323, 400. 
fungi, 319, 425. 
Nozzles, effects of sprays on, 359. 
Nursery— 
experiments at Geneva, N. Y., plan, 257. 
soil, 261. 
stock- 
experiments on leaf diseases, 170, 240. 
leaf blight, experiments with fungicides, 338. 
list of budded, 258. 
notes, 262. 
treatment, 263. 
tumors on roots of, 405. 
O. 
Oak— 
fungus affecting, 423. 
trees, obscure disease, 404. 
Oats— 
bacterial disease, 160, 299. 
disease, 57. 
loose smut, 52. 
smut— 
notes, 160,171. 
treatment, 372. 
treatment for rust, 225. 
Ohio rusts, list, 428. 
Oidium— 
pumpkin leaf, 411. 
sulphur for, 416. 
Old Dominion Fruit Company pear orchard, leaf 
blight affecting, 333. 
Olive— 
Phoma, 330. 
tuberculosis, 303, 304 
Onion- 
disease, 159, 300. 
Onion—Continued, 
mildew, remedy, 407. 
smut, experiments. 62, 161. 
Oomycetes, definition, 389. 
Oospores of Pliytophthora, 423. 
Orange- 
blight, notes, 162. 
causes of disease, 29. 
cultivation in Florida, 28. 
die back— 
cause, 405. 
effect of soil, 295. 
diseases— 
in Florida, 27. 
notes, 295, 302, 304. 
effect of— 
dry weather, 29. 
low temperature, 28. 
fungus, 410. 
Mal-di-goma. (See Foot rot.) 
mold, 407. 
sore skin, 405. 
stocks, 405. 
Tahiti, foot rot prevalent in, 400. 
tree disease in Africa, 405. 
underground, 185. 
Orchard- 
diseases, a few common, 54, 
relation of forest to diseases of, 56. 
spraying, 310. 
trees, danger of excessive pruning, 403. 
Orchid anthracnose, 166. 
Oxaca, fungi of, 320. 
Oxide of iron for foot rot of orange, 167. 
P. 
Paleontology from standpoint of botanist, 148,154. 
Pammel, L. 11., 95. 
Pancratium disease, 413. 
Parasite and host, relations 150 157. 
Parasites on plants and animals, 190. 
Parasitic- 
enemies of cultivated plants, 153. 
fungi, nature, 51. 
Parasitism— 
effect on flowers, 297. 
in plants,158, 388. 
Paris green and Bordeaux mixture, 310. 
Paris, study of plant diseases, 294. 
Passion-flower cuttings, disease, 305 
Peach— 
black spot, 91. 374. 
blight— 
due to Monilia fructigena, 36. 
symptoms and lesions, 37. 
blister, prevention by sulphate of copper, 173. 
brown rot, 92. 
budded on— 
Marianna plum, 227. 
Cercospora, 375. 
clubbed branches, 93. 
curl — 
effect of weather, 88, 314, 375. 
in Victoria, 404. 
prevalent in Ohio, 412. 
preventives, 314, 421. 
frosty mildew, 91. 
leaf rust, 92, 412. 
