490 



MORPHOLOGY OF THE ANGIOSPERMS 



Embryo, adventive, 346 

 anatomy, 347-354 

 cotyledons in, 327-341 

 development, 304, 305, 313, 319, 328 

 four-celled, 304 



mature, 315, 317, 321, 329, 372 

 multicellular, 304, 372 

 two-celled, 295 

 dicotyledon, 329, 333, 350 

 cotyledons in, 356, 357 

 definition, 355, 356 

 intraseminal development, 319 

 ontogeny, 314, 318 

 pseudomonocotyledony, 344, 359 

 relationship of monocotyledons to, 



362, 363 

 in seed, 371 

 seedling anatomy, 347 

 differentiation of organs, 313 

 endodermis continuity, 4 

 epidermal modification, 333 

 form, 313 



gametophytic, 345, 346 

 germination stage, 321 

 grass {see Gramineae) 

 monocotyledon, 5, 311, 312, 316, 321, 

 323, 324, 335, 340, 362, 363 

 aberrant, 360, 362 

 admotive, 321, 322 

 anatomy, 350 



cotyledons in, 328, 356, 357 

 dicotyledon vs., 362, 363 

 form, 321, 322-324, 356 

 interpretation, 336, 342, 353, 365 

 intraseminal growth, 319 

 ontogeny, 316, 317 

 phylogeny, 364 

 remotive, 321, 322 

 rootless, 5 

 in seed, 371 

 in seedling, 348 

 simplification, 357, 358 

 types, 357 

 monocotyledony from dicotyledony, 



328, 358-360, 361, 363 

 phylogenetic reduction, 355 

 phylogeny, 365 

 primitive, 365 



proembryo, absence of free nuclear 

 stage, 312 

 definition, 310 

 massive, 312 

 ontogeny, 314, 317 

 types, 310-312 

 root apex, 329 



seed-shedding stage, 319, 320 

 size, 399, 415, 429 



Embryo, sporophytic, 345, 346 

 stem apex, 322, 328 

 supernumerary, 346 

 (See also Axis; Coleorhiza; Cotyledon; 

 Cotyledonary sheath; Epicotyl; 

 Germination; Hypocotyl; Meso- 

 cotyl; Plumule; Root apex; Seed- 

 ling, root; Suspensor) 

 Embryo sac, apomictic genera, variations, 

 300 

 archegonial theory, 301, 302 

 bisporic, 294, 296, 297, 298, 299 

 development, 264, 265, 267, 279, 292, 



293, 294, 304, 305 

 gnetalian theory, 302, 303 

 mature, 261, 264, 281, 293, 294, 295, 



297, 315, 316, 436 

 monosporic, 294, 296, 297, 299, 402 

 naked, 294 

 origin, 467 

 specialization, 299 

 tetrasporic, 294, 296, 297, 298-300 

 types, 297, 301 

 Adoxa, 298-300 

 AUium, 298, 299 

 Drusa, 298, 300 

 FritiUaria, 298, 300 

 Oenothera, 299 

 Tenaea, 298, 300 

 Teperomia, 298, 300 

 Plumbagella, 298, 300 

 Plumbago, 29S-^00 

 Polygonum, 296, 299 

 wall, 294 

 Empetraceae, xylem, 54 

 Endodermis, continuity, 4 



occurrence, 4, 22, 28 

 Endosperm, aleurone layer, 306, 371 

 cytology, 295, 305, 306, 374 

 food storage, 305, 306 

 formation, 310 



cellular, 303, 304, 305 

 helobial, 303 

 nuclear, 303, 304 

 in fruit, 207 

 haustoria, 303 

 histology, 374 

 nature, 306, 374 

 occurrence, 267, 355, 358, 361, 388, 



429 

 polyploid tissue, 303 

 ruminate, 306, 392, 395, 399, 400, 



402, 403, 430 

 in seed, 315, 371, 372, 374 

 "vegetative" fertilization, 303 

 Endothecium, 125, 138, 140, 166 



