INDEX 



331 



U 



rmbellate, 177 

 Uro-phlycHs, 101, 107 



alfalfae, 104, 107 



kriegeriana, 106 



leproides, 106 



major, 107 



pluriannulatus, 104, 105, 107 



piilposa, 103, 107 



Verticillate l^ranching, 256 

 \'esicle, subsporangial, 251, 285 



thin-walled, 199, 200 

 \'irescence, 213 

 Volkartia, 306 



W 



Water moulds, physiology of, 146 

 "White rusts," 187 

 Woronina, 67, 69, 70 



glomerata, 70 



polycystis, 70 

 Woroninaceae, 48, 66 

 ]Voroni?iella, 80, 85 



aecidioides, 86 



psophocarpi, 85 



vulcanica, 85 



X 



Xenomyces, 266 



Yeasts, 16, 302 



Zonation, in oogonium. 191 

 Zoophagiis insidians, 199 

 Zoosporangium, 25 

 Zoospores, 15, 24 



multiciliate, 141 



repeated emergence of, 150 

 Zygochytrium, 108 



aurant'iacum, lOS, 109 

 Zygomycetes, 33, 41 

 Zygomycetous, 33 

 Zygophores, 248 

 Zygorhizidium, 46, 89, 93 



willei, 93 

 Zygorhynchus, 237, 243, 249 



bernaldi, 249 



dangeardi, 249 



heterogamus, 239, 249, 260 



japonicus, 249 



moelleri, 239, 249 



vuilleminii, 249 

 Zygosporangium, 44 

 Zygospores, 28, 33, 44, 234, 282, 294 



formation of, 235, 236, 249 



germination of, 237, 238 



imperfect, 237 

 Zygote, 27, 100 



amoeboid, 29 



biciliate, 132 



in Myxomycetes, 7 



piano-, 28 



