478 



MORPHOLOGY OF THE ANGIOSPERMS 



Amaryllidaceae, embryo, adventive, 346 

 anatomy, 350 

 hypocotyl, 324 

 integumentary, 346 



flower, 246 



germination type, 320 



ovary, 246 



ovule, 258, 266, 274 



petioles, vestigial, 19 



pollen, 448 

 Amborella ( see Amborellaceae ) 

 Amborellaceae, flowers, 411 



Momimiaceae, resemblance to, 411 



node, 411, 430 



phloem, 57 



pollen, 411 



relationships, 422 



xylem, vesselless, 47, 48, 411, 423, 

 435 

 Ambrosia, anemophily, 173, 174 



cotyledon number, 343 



pollen, 163 

 Ambrosieae, pollen, 162, 163 

 Amelanchier, hypanthium, 249 

 Amentiferae, anemophily, 169, 170 



catkins, 75, 83 



chalazogamy, 179 



conifers, similarities to, 464, 465 



cotyledon, bilobed, 329 



flowers, 89, 465 



inflorescences, 89, 173 



megaspore mother cells, 292 



nectaries, absence, 153 



ovules, 259, 260, 263, 274, 275 



pollen, 164 



pollen tube, 180 



unnatural assemblage, 437 



xylem, 465 



(See also families commonly placed 

 in the Amentiferae) 

 Ammophila, coleoptile, bilobed, 337 

 Amoora, seeds, 371 

 Amsinckia, cotyledons, lobed, 344 

 Anacalosa, ovule, 278 

 Anacardiaceae, chalazogamy, 179 



gynoecium, 242 



leaf trace number reduction, 25 



stamens, abortive, 105 

 Anagallis, carpel bundles, 27 

 Ananas, fruit, 375, 376, 379 



inflorescence, fleshy, and fusion, 81 



nectary, 232 

 Anarthria, stigma, 198 

 Ancana, anther, 392 

 Anchusa, ovule, 267 

 Androecium, adnation, 105—106 



(classification, 96-103 



Androecium, definition, 90 



fasciculate, anatomy, 97, 98, 100 

 nature, 96-98 

 ontogeny, 96 



(See also Fascicles of stamens) 

 zygomorphy, 98 

 fusion, 105 

 ontogeny, centripetal and centrifugal, 



107 

 reduction, 103-105 

 spiral arrangement, 96 

 types, dillenialian, 433 

 helobialian, 439 

 palm, 447, 449 



ranalian, 386, 389, 416, 418, 419, 

 425 

 whorled arrangement, 99, 100, 101, 



102, 103 

 zygomorphy, 106 

 (See also Obdiplostemony) 

 Andromeda, flower, 246 

 Anemiopsis, root system, 320 

 Anemone, growth, intraseminal, 319 

 inflorescence, 72 

 meristems, marginal, 228 

 ovules, 212, 214, 267, 273, 413 

 Anemophily, 153, 162, 163, 169, 170, 

 173, 174, 380, 413, 436, 448 

 (See abo Pollination) 

 Anemorrhea, cotyledon, 342 

 Angiosperms, age, 1, 173, 174, 421 

 ancestry, 469, 470 

 arils, 373 

 cambium, 59-61 

 Casuarinaceae, position in, 435 

 classification as Lignosae and Herba- 



ceae, 464 

 cotyledon, peltate, 328 

 definition, 1 

 embryo, 4, 5, 311-365 

 embryo reduction. 313 

 endodermis in ancestral, 4 

 endosperm, 306, 321, 374 

 evolutionary progress, 468 

 flora, "mature," in Cretaceous, 468 

 gametophytes, 2, 301 

 habit, 3, 421 



leaf, 37-43, 421, 444, 448 

 nodal anatomy, 28, 421, 423, 437 

 origin, 49, 464-466 

 gnetalian, 465 

 monophyletic, 463, 467 

 paleozoic, 468 

 polyphyletic, 300, 466, 467 

 ovule, 278, 470 

 pericycle, 28 

 perisperm, 375 



