INDEX 



779 



Wind action, 29s; dissemination of smut 

 spores, 179; distribution of spores, 

 66; its influence on plants, 286 



Wind-swept white poplar, figure of, 287 



Winkler, H., work of on graft hybrids, 

 330 



Winogradsky, mentioned, 54 



Winter, G., mentioned, 61 



Winterstein, research of, 52 



Wire basket, figure of, 624 



Wire worms, 651 



Witches' brooms, 72, 342, 348, 395; 

 on hackberry, figure of, 351 



Withering, 652 



Wood-boring insects, 310 



Woody fungi, 218 et seq. 



Worsdell, W. C, book of, 340 



Wound-cork, 376; description of, 383 



Wounding of plants, artificial, 648 



Wound-wood, 376, 381, 382 



X 



Xylaria Cookei, 62 ; digitata on old wood, 

 164; hypoxylon, 62; polymorpha on 

 old tree stumps, 164 



Xylariaceae, characters of family, 164 



Yeasts, 52; 134 et seq.; counting cells 

 of, 617; character of fermentation, 

 I37> S9Si fil™ formation, 137; on 

 gypsum blocks, 622; spores, 622; 

 sporulation, 137, with zymase, S9 



Yellow rust of wheat, 203 



Yellows of peach, 573 



Yolk of eggs, 603 



Youngken, H. W., 39 



Zeiller, work on fossil fungi, 82 



Zoocecidia, 385 



Zoogloea, 23 



Zoology emphasized, 271 



Zopf, W., cited, 7, 53, 56; handbook of, 



SS 



Zygomycetales, s=; absence of cellulose, 

 52; bibliography of, 105; character 

 of order, 92, 93; key to families, 97 



Zygosaccharomyces, 141 



Zygospores, 50 



Zymase, 56, 59 



Zymogen, 57 



Zymogens. 25 



