Inde 



x, 



Absorption, in fungi. 10 



in parasites. 12 



system of parasites, 10 



threads, 61 



Acetate of copper, 220 



Acid of rancid butter, in potato 

 wet rot, 340 



Aecidium elatinum (Fig. 23), 



53, 277, 27l 



grossularias, 317, 387 



species of. 3$; 



Agaricacese (see gill fungi), 178 



Agaricus campestris (Fig. 89), 179 

 melleus (Fig. 128), 260, 261, 262 

 melleus, mold on, 394 



Age, of mycelium, 19, 20 



old, predisposition of, 95 



old, relations of, 91 



stimulation, 83 



Aid of state in disease preven- 

 tion, 208 



Albugo Candida, 330 



Alcohol, in apple blight, 364 



Alder, hairy pore fungus of, 259 



powdery mildew of, 377 



root tubercles of, 50 



witches'-broom on, 121 



Alfalfa, bacteria of, 196 



leaf spot, 309 



Algae, absence of rusts in, 165 



blue green, 7 



causing disease in plants, 198 

 flower pot, 104 



partnership with fungi (Fig. 



21), 48,49, I45 146 



pill box, host to Chytri- 



dines, 105 



pond scums, 105 



Algal fungi, 103, 104 



destruction of small areas, 78 

 list of groups in, 104 



lowly (Fig. 41), 104, 105 



on animals, 66 



on fruits, 65 



Algal fungi, on insects, 67 

 Aluminum sulphate, Hassel- 



man's treatment, 239 

 Ammonia in blue water, 219 

 Ammoniacal copper carbonate, 219 

 for apple rot, 357 

 for aster leaf rust, 376 

 for black rot of vine, 366 

 for blight of ro^ 37^ 

 for downy mildew 01 Deans, 33; 

 for leaf blight of cder;, 321 

 for mildew of chrysanthe- 

 mum, 380 

 for powdery mildew of ap- 

 ple, 361 

 for powdery mildew of cu- 

 cumber, 325 

 for powdery mildew of 



hops, 325 

 for powdery mildew of 



strawberry, 324 

 for powdery mildew of 



vines, 366 



for rose leaf rust, 375 



substitute for bordeaux, 220 



Amoeba stage of slime moulds, 197 



Amphibia, parasites on, 72 



fish molds on, 107 



Amphispore of Puccinia 



vexans, 159 

 Anatomy of host, effect of 



parasite on, 87 

 Ancestry of plants, 

 Anemone, cluster-cup on (Fig. 



74), 161 



cup fungi on, 145 

 gall fungus of, 398, 399 



host to Chytridines, 105 



host to downy mildews, 112 



rust of, 390 



smut of, 39 2 

 Animals, burrowing, wounds 



caused by, 47 



parasites on, 66 



