765 



Injuries by acid, 649; by gas, 649; by 

 smoke, 649 



Inoculation experiments, 643 et seq. 



Inorganic elements in fungi, 55 



Insecticides, 678, 679 



Insects as cause of disease, 275; as gall 

 producers, 396; biting, 296; sucking, 

 296; wood-boring, 310 



Intercellular hyphae, 48 



Internal causes of disease, 326 



Intucellular hyphae, 48 



Intumescences, 366 



Inulin, 58 



Inulase, 58 



Invertase, 58 



Involution forms of Bacillus radicicola, 

 30; of bacteria, 364; of Pseudomonas 

 tumefaciens, 365 



Iron indispensable to fungi, 54; in- 

 fluence of, 277 



Irpex, species of, 223, 224 



Isolation of fungi in pure culture, 624 



Ithyphallus impudicus, 252; and flies, 67 



fleshy fungi, list of, 729-732; to genera 

 of family Exoascaceae, 133; to genera 

 of Peronosporaceae, 114; to Myxogas- 

 trales, 693-695; to Nidulariaceae, 

 244, 245; to species of Penicillium 

 on agar and gelatin, 712-719; to 

 suborders of Basidiomycetales, 177 



Kiln-drying, 693 



Kinase, 57 



Kinds of lichen thalli, 79 



Koernicke, Max, experiments with 

 Roentgen rays, 62 



Kohlhernie, 487 



Koji fungus, 58 



Kolkwitz, experiments of, 62 



Knauers, 348 



Knife punch, figure of, 597 



Knot of citrus trees, experiments with, 

 647 



Kuehneola gossypii, 508 



Kiihne, mentioned with enzymes, 56 



Kurssanow, work on rusts, 191 



J 



Jahn, E., cited, 13 



Jeffer's counting plate, 628; figure of, 629 



Jew's ear fungus, 216 



Jones, L. R., work on cabbage immunity, 



274 

 Juniperus virginiana, cedar apples 'on, 



394 



K 



Kapoustnaja kila, 487 



Karyokinesis, in fungi, 53 



Kephir, 58, 140 



Kerner, Anton, work of, 385 



Key to determine species of Mucor, 

 695-702 



Keys to Erysiphaceas, mentioned, 157 



Key to families of Oomycetales, 109; 

 to families of Perisporiineae, 154; to 

 families of Zygomycetales, 97; to 



Laboratory exercises, 581; with slime 

 moulds, 18 



Laboulbeniaceae, 172; hosts of, 86; 

 work of Faull on, 173 



Laboulbeniineae, 171 



Labyrinthula Cienkowskii, 11 



Lachnea description of several species, 

 169; scutellata, figure of, 166 



Lactarius, 731; chelidonium, description 

 of, 740; deceptivus, description of, 

 740; deliciosus, description of, 740; 

 description of genus, 740; fumosus, 

 description of, 741; piperatus, de- 

 scription of, 741; indigo, description 

 of, 741; volemus, description of, 742 



Lactic acid fermentation, 32, 59 



Lactase, 58 



Lactose, 58, 59 



Lamium orvala, figure of, callus, 378 



Lamprocystis, 39 



Lantz, Cyrus W., bibliography by, 564 



