486 



MORPHOLOGY OF THE ANGIOSPERMS 



Cocos, gynoecium, 243 



intraseminal growth, 319 



nectary, 232 



pollination, 448 



syncarpy, 449 

 Coenocarpy (see Gynoecium) 

 Cofea, ovule, 258, 282 

 Coix, mesocotyl, 341 

 Coleoptile, function, 329-331 



ligular, 15 



nature, 339-341 



structure, 336, 337, 338, 371 

 Coleorhiza, 326-327, 336, 371 

 Collet, 324 



Colocasia, venation, 18 

 Columella, 114 

 Corruindra, ovule, 278, 279 



placenta, 279 

 Combretum, interxylary phloem, 58 

 Commelina ( see Commelinaceae ) 

 Commelinaceae, androecium, obdiploste- 

 monous, 103 



anther, 110 



anther-sac wall, 169 



cotyledon, 332, 333, 342 



cotyledon number, 343, 359, 360 



embryo, 328, 338, 350, 357 



Gramineae, relation to, 345 



ovule, 263 



seed, 328 



seedling, 338 



stamens, 128 

 Compositae, "achene," 380 



anemophily, 163, 173 



anther dehiscence, 167 



anthers, coherent, 105 



early-embryo type, 311 



endosperm absent, 374 



inflorescence, 67, 72, 78 



megaspore mother cells, 292 



ovular vascular system, 273, 274 



pollen, 158, 162 



pseudocoroUa, 78 



root anatomy, 351 



stele, amphiphloic, 23 



tunica, 33 



xylem, 50, 54 

 Concrescence theory, 245 

 Conducting tissue (see Transmitting 



tissue) 

 Conduplicate closure (see Carpels, clo- 

 sure) 

 Coniferales (see Conifers) 

 Coniferales-Amentiferae theory, 464, 465 

 Conifers, anemophily, 169, 170 



Casuarina inflorescence resemblance to 

 cone, 436 



Conifers, forest, 1 



ovules, 269, 272 



paleozoic, 269 



pollen tube in araucarian, 178, 179 



polycotyledony, 363, 412 



prothallial cells, 180 



( See also genera of conifers ) 

 Connation, 79 



androecium, 96, 100, 105 



carpels, 236, 421 



evolutionary modification, 91 



gynoecium, 231, 243, 413 



inflorescence, 79, 80 

 Contortae, ovular vascular system, 274 

 Convalhria, inflorescence, 70 

 Convolvulaceae, phloem, internal, 58 



stele, amphiphloic, 23 

 Coptis, carpel, 186, 187, 188, 189, 190 



nectaries, 152 



petals, 148 



secretory sterile stamens, 105 



staminodia, 151 

 Core, 31-33 

 Cormous habit, hypocotyl in taxa with, 



325 

 Cornaceae, inflorescences, flowerlike, 78 



ovule, 266 



ovule traces, 273 



pollination, 170 



stipules, 14 



vessels, 45 

 Cornus, calyx, 88 



inflorescence, 72 



ovule traces, 273 

 Corokui, ovule traces, 273 

 Corolla, adnation of androecium to, 105- 

 106 



connation in, 96 



primitive, 104 



ranalian, 425 



( See also Perianth ) 

 Corpus, 31, 32, 33, 34 

 Cortical vascular system (see Vascular 



system ) 

 Corijdalis, intraseminal growth, 319 



"monocotyledony," 343, 344, 359 

 Conjlus, fruit, 380 



stamens, 111, 131, 133 

 Corijmbiiim, inflorescence, 72 

 Conjpha, inflorescence, 67, 445 



leaves, 443 

 Cosmos, pseudocoroUa, 78 

 Costa, 444 

 Costus, embryo, 322 

 Cotyledon, definition, 355 



"dichotomy," 327, 350 



dicotyledonous, anatomy, 329, 335 



