374 



EMBRYOGENESIS IN PLANTS 



megaphyll, 170 



megasporangium, 172 



megaspore, 107, 108, 116, 155, 172, 174, 



218, 222, 281 

 meiosis, 172 

 Mentha, 240 



meristematic activity, 322 

 Merry, 274, 276, 277 

 metabolic gradients, 7, 25, 148 

 metabolism, 165, 167, 316 

 Metcalfe, 265 

 Mettenius, 134 

 Meyer, 66, 67, 68 

 Michaelis, 312 



Microcycas, 172, 176, 178, 184 

 microphyll, 170 



micropylar haustorium, 261, 282, 285 

 micropyle, 175, 224, 225 

 microspores, 172, 174 

 micro-structure, 320 

 micro-theory of morphogenesis, 333 

 Milne-Edwards, 245 

 Mimidus tigrinus, 260; Fig. 66 

 minimal area or surface, 28, 142, 144 

 Mirbel, 212 

 Mitchell, 227, 282 

 Mniuin horniim, 80; Fig. 18; M. 



punctatum, 80 

 Modilewski, 290, 291 

 monocotyledons, 238, 240, 261; Fig. 



56 

 monophyletic classification, 3 

 Monotropa hypopitys, 285; Fig. 78 

 Monotropaceae, 285, 286 

 Morel, 100, 122 

 Moringa oleifera, 255 

 morphogenesis, 2, 5 

 morphogenetic substances, 165 

 morphogens, 34, 35 

 morula, 58 

 mosaic eggs, 24 

 'mosaic theory,' 167 

 La Motte, 116, 118, 120, 121 

 Muller, 68, 333, 334 

 Muntzing, 297 

 Murneek, 294 

 Muscari, 240, 242 

 Musci, 77, 79; Fig. 18 

 mutation, 124, 222, 323 

 Myosotis, 242 

 Myosurus, 240, 245, 248, 249, 264; 



M. minimus. Fig. 56 



Myriophyllum, 258; M. alterniflorum. 

 Fig. 65 



Myrtaceae, 288 



Naccaria, 58, 60 



Nakajima, 289 



Nardia geoscypha, Fig. 16 



Nast, 254, 255 



Nasturtium officinale. Fig. 60 



Naylor, 54 



Needham, 3, 12, 21, 320, 325 



Nemalion muJtifidum, 58, 60; Fig. 12 



Nemec, 227 



neoteny, 11, 87 



Nephrodium mode, 1 58 



Netolitzky, 251 



Nicotiana, Figs. 1, 55; 312 



Nishmura, 276 



NiteUa, 325 



nitrogen metabolism, 98, 101, 105, 106, 



107, 131, 132, 304, 309, 310, 322 

 Nogouchi, 298 



non-viable embryos, 311 



Nordenskiod, 297 



Norner, 274 



Notothylas, 84; Fig. 7; A^. breutelii. 



Fig. 17; N. orbicularis, 11; Fig. 17 

 nucellus, 172 



nucleic acid, 310, 314, 315 

 nutrient solutions, 303, 305 

 nutrients, 221, 227, 295, 296, 300, 301, 



318 

 nutrition, 29, 94, 96, 101, 103, 104, 105, 



108, 123, 124, 126, 130, 131, 132, 133, 

 134, 135, 136, 148, 152, 158, 159, 161, 

 162, 163, 164, 168, 170, 172, 175, 177, 

 183, 185, 188, 191, 193, 218, 221, 222, 

 224, 225, 227, 258, 274, 277, 278, 285, 

 289, 295, 296, 300, 307, 313, 322 



Nuytsia, 257 

 Nymphaeaceae, 257 



oat, 272 



Ocdogonium, 40, 41, 323; O. concatena- 



tum. Fig. 8 

 Oenothera, 240, 298, 299, 312, 316 

 oil, 177 



Oliver, 227, 286 

 Olson, 18,48 

 Oltmanns, 58 

 Onagraceae, 226 

 Onagrad type, 235, 236, 240 



