SUBJECT AND PLANT INDEX 



Aberrant and unclassified embryo sacs, 



125 

 Abnormal embryos, 298 

 Abnormalities of fertilization, 204-209 

 Abortive embryos, 386 

 Abronia, 429 

 Acacia, 139-141, 157, 158, 182-184, 195, 



200, 203, 207 

 Acalypha, 69, 110, 111, 131, 185, 346, 416, 



426 

 Acanthus, 237 



Accessory pollen tubes, 203 

 Achillea, 72 

 Achras, 188 

 Achroanthes, 296 

 Aconitum, 137, 169 

 Acorus, 67, 261 



Adoxa, 85, 122, 123, 156, 211, 229, 230, 417 

 Adoxa type of embryo sac, 122 

 Adventive embryony, 15, 313, 334, 346, 



393 

 Aeginetia, 30, 62, 183, 304, 305 

 Agapanthus, 368, 428 

 A gat his, 421 

 Agave, 46, 69 

 Agraphis, 13, 98 

 Agropyrum, 257 

 Agrostemma, 230 

 Aizoaceae, 362, 363 

 Alangium, 37 

 Albizzia, 158 

 Albuca, 133 



Alchemilla, 21, 23, 185, 329, 332 

 Alchornea, 337 

 Alectorurus, 369, 370 

 Aleurone layer, 256 

 Alisma, 14, 35, 269 

 Allioideae, 368 

 Allium, 15, 66, 98, 132, 144, 155, 158, 204, 



269, 346-348, 368 

 Allium type of embryo sac, 98 

 Alnus, 190, 349 



Aloe, 370, 371 



Alonsoa, 241, 243 



Althaea, 181 



Amaryllis, 58, 165, 166 



Amianthium, 422 



Amitotic divisions in endosperm, 225 



Amoeboid tapetum, 35, 36 



Ampelopsis , 398 



Amphicarpaea, 291 



Amphimixis, 313 



Amputation of style, 378 



Amyema, 38, 143, 298 



Anacampseros , 363 



Ananas, 402 



Androgenic haploids, 317 



Androsaemum, 284, 285 



Anemarrhena, 369 



Angelonia, 134 



Anogra, 73, 96, 225 



Anona, 30, 45, 46 



Antennaria, 21, 22, 329, 332 



Anther, 28 



Anther tapetum, 32 



Anthericum, 156, 159, 249, 250, 



369 

 Antipodal cells, 134 

 Antipodal embryos, 346, 350 

 Antipodal haustoria, 134, 135 

 Apicra, 370 

 Apogamy, 313 

 Apomixis, 22, 209, 313 



facultative, 323 



nonrecurrent, 314 



recurrent, 319 



unclassified, 329 

 Aposporic embryo sacs, 332 

 Apospory, generative, 313, 321 



somatic, 313, 327 

 Arachis, 139, 257 

 Araucaria, 411, 421 

 Arceuthobium, 31, 40, 64 

 Archesporium, in anther, 29 



in ovule, 69 

 Archieracium, 327 



441 



