452 INTRODUCTION TO EMBRYOLOGY OF ANGIOSPERMS 



Tetrasporic embryo sacs, 106 

 Theobroma, 268 



Thesium, 58, 64, 87, 142, 231, 233 

 Thunbergia, 237 

 Thysa?wtus, 369 

 Tilia, 139, 223 

 Tobacco, 400, 401 

 Tofieldia, 248 

 Tomato, 34, 400, 402, 403 

 Torenia, 142, 184, 202, 242 

 Torreya, 412 



Tradescantia, 10, 36, 154, 155, 166, 193 

 Transmitting tissue, 4, 183 

 Trapa, 96, 365, 366 

 Trapaceae, 365 

 Trianthema, 56, 57 

 Trifolium, 182, 193, 291, 351, 381 

 Triglochin, 36 

 Trigonella, 291 

 Trillium, 42, 195, 334, 422 

 Triple fusion, 18, 20, 194, 198, 221, 269, 

 270 



without syngamy, 208 

 Tripsacum, 378 



Triticum, 200, 257, 351, 352, 391-393 

 Tropaeolum, 188, 226, 298 

 Tsuga, 421 



Tube nucleus, 169, 194, 211 

 Tulbaghia, 54, 368 

 Tulipa, 14, 118, 120, 122, 124, 165, 166, 



201, 344, 368, 371, 417 

 Twins and triplets, 350 

 Types, of embryo sac, 84-87 



of endosperm formation, 221 

 Typha, 36, 48, 376 



U 



Ulmus, 17, 56, 112, 114, 122, 138, 169, 186, 



203, 207, 209, 346, 347 

 Umbilicus, 92 



Unclassified and abnormal embyros, 298 

 Unorganized and reduced embryos, 302 

 Urginea, 29, 71, 75 

 Ursinea, 133 

 Urtica, 195 

 Utricularia, 30, 142, 184, 202, 237, 240, 



241, 291 

 Uvularia, 154, 156 



Vaccinium, 157, 158 



Vaillanlia, 62 



Vallisneria, 32, 39, 164, 169, 195-197, 



201, 211, 248 

 Vallota, 389 

 Vanda, 303 



Vandellia, 142, 184, 241, 242 

 Vanilla, 38, 221 

 Vascular supply of ovule, 67 

 Vaucheria, 9 



Vegetative cell, 11, 16, 161 

 Vegetative nucleus, 169, 194, 211 

 Veltheimia, 144 

 Verbascum, 241 

 Verdickia, 369 



Vermiform appendage, 227-229 

 Veronica, 242 



Viability of pollen, 24, 181, 376 

 Villarsia, 231 

 Vinca, 161, 197, 204 

 Vinceloxicum, 208, 344 

 Viola, 169, 188, 200, 201, 277 

 Viscum, 38, 64, 99, 268 

 Vitis, 402 



Vivifick effluvium, 2 

 Vogelia, 125, 188, 346 

 Voyria, 306 

 Voyriella, 306 



W 



Wall formation in endosperm, 226 

 Wall layers, in anther, 30 



in ovule, 69-73 

 Weddelina, 103, 104 

 Welwitschia, 412, 416 

 Wolffia, 30, 32, 39 

 Woodfordia, 138 

 Wormia, 161, 162, 188 



X-bodies, 211 

 Xenia, 19, 258 

 Xeranthemum, 226 



