482 



MORPHOLOGY OF THE ANGIOSPERMS 



Betulaceae, pollen, 162, 437 



relationships, 437 



stamens, two-trace, 27, 132, 133, 437 



vessels, 45 

 Bignonm, anther dehiscence, 167 

 Bignoniaceae, omithophily, 172 



placentoids, 144 



stamens under zygomorphy, 106 



xylem, 54 

 Billbergia, mesocotyl, 341 

 BLxaceae, stamens, 107 



vessels, 45 

 Blairia, carpels, 242 

 Boehmeria, ovule, 270 

 Bombacaceae, xylem, 51 

 Boraginaceae, ovules, 259 



pollen, 158 



transmitting tissue, 204 

 Borago, anther-sac wall layer, 168 

 Botn/chium, sporophyte development, 365 

 Bouvardia, ovule type, 282 

 Brachiaria, embryo, 323 

 Bracteoles, 16, 77 

 Branch gaps, 24 

 Branch traces, 24 

 Brasenia, anther dehiscence, 417 



ovule number, 215 



placentation, 210, 211, 213, 215, 216, 

 390, 416, 438 



sporangium position, 412 



stamen, 120, 122, 417 

 Brassica, carpel number, 221 



hypocotyl, 325 



pollen tube course, 179 

 Bromclia, fruit, 376 

 Bromeliaceae, cotyledon, 331, 332 



mesocotvl, 331, 341 



septal glands, 152 

 stipules on stamens, 12 

 Bromus, coleoptile, 337 



placentation, 206 

 Broussonetin, anther wall, 136, 141 

 Brunoniaceae, ovary, 248 

 Bryophyta, "foot" of embryo, 364 

 Bubbia, carpel, 186, 385, 386 



stigmatic crest, 385 

 Buchloe, embryo, 324 

 Bud scales, 42 



Biinium, pseudomonocotyledony, 359 

 Burmanniaceae, androecium, 103 



embryo reduction, 335 

 Burseraceae, cotyledons, 344 

 Butomaceae, anthers, 124, 128 

 carpel, 189, 224 

 embryo, 329, 358 

 floral characters, 439 

 gynoecium, 439 



Butomaceae, placentation, 208, 211, 438, 

 439 



pollen types, 439 



seeds, 329 



stipules, 13 



style, 203 



taxonomic treatment, 439 



venation, 18 



xylem, 439 

 Butomales, origin, 464 

 Butomopsis, pollination, 189 



style, 203 

 Butomus, carpel, 188, 189, 190 



embryo, 358 



Horal diagram, 101 



megaspore, 292 



ovule number, 270 



placentation, 208 



placentoids, 143 



stigma, 198 



syncarpy, 231-233 



Cabomba ( see Cabombaceae ) 

 Cabombaceae, anther dehiscence, 417 



characters, 416 



corolla, 424 



flower, 416 



microsporangia, 117, 121 



ovule number, 215, 270 



ovule traces, 427 



perianth, 417 



placentation, 208, 210, 211, 213, 390, 

 416, 418, 427, 438 



relationships, 412, 422 



specialization, 416 



stamens, 119, 120, 121, 122, 123, 417 



xylem, 431 

 Cacao, embryo development, 319 

 Cactaceae, endospenn, 374 



hypocotyl, 325 



ovary, 247 



ovules, 256 



stamens, 96, 107 



vessels, 45 

 Calamites, habit, 443 

 Calendula, cotyledon number, 343 

 Callistenion, fruit, delayed dehiscence, 

 378 

 histology, 379 

 perennial growth, 379 



inflorescence, 68 



omithophily, 172 

 Callitriche, anther, 128 



microsporangia, 114 



stamen number, 104 

 Calotte (see Nucellus) 



