Subject Index 



"Accidental fusion" theory of sex, 337 

 Acanthostaunis pnrpurascens, 182 

 Acephalina, 190 

 Acetobacter i/ielaTiogemi?//, 13 

 Achlyci, 53, 68-71, 74 



ainbisex'ualis, 57, 65 

 Achnanthes brevipes, 94 



lanceolata, 85, 93, 94 



lojjgiceps, 94 



longipes, 85 



i/mmtissi7/ia, 93 



subsessilis, 91, 95 

 Acnidosporidia, 202 

 Actbiocephalus parvus, 190 

 Actinomyxidia, 200 

 Actmophrys sol, 179-181, 246, 337, 



338, 344 

 ActhwspaeTiui)! eichhoriii, 180, 181, 



246 

 Activation in Paraiiieciinti, 298, 302 

 Ad e lea ovata, 195, 344 

 Adeleidae, 195 

 Adelina cryptocerci, 195 



derofiis, 193, 195, 203, 204 

 Aggregata eberthi, 195-197, 204 

 Aggregatidae, 195 

 Agrobacteriu?)! tinuefaciens, 37 

 Algae, chemotaxis in, 116 



clumping in, 117 



cytogamy in, 121 



diploid zygospore in, 122 



effect of light on, 107 



effect of medium on. 111 



effects of period of illumination on, 

 110 



effects of quality of light on, 108 



"genetyllin" in, 112 



heterothallism in, 103 



homothallism in, 103 



hybridization of, 106 



induction of sexual activity in, 107 



isolation of sexual strains of, 105 



mating in, 103, 116 



new haplophase in, 125 



outbreeding mechanisms in, 102 



pairing in, 1 19 



planozvgotes in, 120 



relative sexuality in, 105 



sex substances in, 114 



sexual activity in, 107 



sexual differentiation in, 101 



sexual dimorphism in, 102 



vegetative cells and gametes in, 101 



vis-a-vis pairs in, 120 



zygospore germination in, 124 

 Alloviyces, 48, 49, 53, 68, 71 



arbiiscitla, 65 



cystogeinis, 49 

 Alphavwvas, 148, 149 

 Amoeba alba, 171 



diploidea, 171, 344 



f rose hi, 171 



iiibmta, 171 



'inira, 171 



proteus, 171, 172 



verriicosa, 337 

 Amoebina, 171 

 Aiiiphidinmm laciistre, 139 

 Aviphipleura pelhicida, 86, 87, 91, 93 



rutilans, 93 

 A'lnphiprora alata, 93 

 ATiiphora coffaeforinis, 93 



cyinbelloides, 93 



?iorwa?iii, 90, 95 



ovalis, 93 



oval is var. pe die id us, 93 



pusio, 93 



veneta, 93 

 Anisogamous fusion in diatoms, 90 

 AnoDioeoiieis exilis, 85, 92 



sc'ulpta, 93 



seriavs, 93 

 Aiwplophrya branehiarwti, 241, 242 



orehestiae, 242 

 Ambophysa vegetans, 149 

 Apolocystis elongata, 190 

 Arcella, 174 



vulgaris, 173 



354 



