754 



Amanitopsis vaginata, speed of spore 



fall, 64 

 Aniaurochaete, spores of, 16 

 American Phytopathological Society, 



status of, 411 

 Amidase, 58 

 Amcebobacter, 39 

 Amphibolips ilicifolia, gall producing on 



Quercus nana, 399 

 Amphispores, 188 

 Amphitrichous, 23 

 Amygdalin, 59 

 Amylase, 58 

 Anaeretic, 332 



Anaerobic cultivation, 625; organisms, 27 

 Analysis of water, 626 

 Anatomy, pathologic plant, 354 

 Anbury, 487 



Ancyclistaceae, characters of, 118 

 Animals as cause of disease, 275 

 Animal galls, 296; injuries, 295, 309 

 Animate agents of disease, 295 

 Annulus superus, 233 

 Anther smuts, 72 

 Antherophylly, 332 

 Anthesmolysis, 332 

 Anthocyanin, 360 

 Antholysis, 329, 332 

 Anthracnose of cotton 508; of melons, 



52s; of raspberry, 544 

 Anthrax, 35 

 Anthurus borealis, 252 

 Anti-enzymes, 58 

 Antisepsis, 692 

 Aphylly, 332 

 Apilary, 332 

 Aplanobacter, 35 

 Apogamy, 332 

 Apophysis, 332 

 Apostasis, 333 



Apothecium, structure of, 121 

 Apple, black-rot of, 478, 479; bitter-rot 



of, 477, 478; fruit spots 570; scab, 



478, 480, 481; figures of, 480; tumor 



on stem, figure of, 390 

 Appel, O., work of, 272, 273 



Appel's potato scab, 646 



Appressoria, 308 



Arcyria, 15 



Armillaria mellea, 62, 83, 530; color of, 



S3; described, 46, 737; figure of, 47 

 Arrestment of cell wall development, 359 

 Arthrospores in bacteria, 25 

 Artificial wounds, 295 

 Asci of chestnut blight, figure of, 500 

 Ascobolacese, characters of, 166 

 Ascobolus immersus, special methods of 



spore discharge, 66 

 Ascobolus, spore colors of, 54 

 Ascochyta pisi, 534 

 Ascogenous hyphal system, figures of, 



125, 127 

 Ascoideaceae, 120 

 Ascomycetales, bibliography of, 174, 



17s. 176; general characters of, 121, 



122; phylogeny of, 173, 174; sexuality 



of, 122 

 Ascospores 50; germination in chestnut 



blight, figure of, 5^1; representation 



by figures of development, 128 

 Ascus 50; diagrams of, by Claussen, 124 

 Ash, heart rot of, 481, 483 

 Ashlock, J. L., quoted, 182 

 Ash of fungi, analysis of, 54 

 Asiatic cholera, 37 

 Asparagus rust, 191, 483, 484 

 Aspergillacese, characters of, 143 

 Aspergillus, characters of the genus, 144 

 Aspergillus fumigatus as pathogenic, 



147; flavus, 147; giganteus, 147; 



Key to species of, 702-703; nidulans, 



figure of, 148; niger with lipase, 59; 



with raffinase-58; luchuensis, 147; 



oryzete, 146; figure of, 145; with 



diastase 58; tokelau, 147; Wentii, 146 

 Asphyxiation of roots, 565 

 Assimilation tissues of galls, 400 

 Astrffius, 244 

 Atkinson, Geo. F., book quoted, 91; 



quoted, 235, 236; work of, 248, 249 

 Atrichous, 23 

 Atrophy, 333, 342 



