MORPHOLOGY, ANATOMY, AND PHYSIOLOGY. 



591 



Microsporangium, 52, 349, 396. 

 Microspore, 51, 349, 396. 

 Microsporophyll, 56, 349, 395. 

 Microsporophyllary flower, 56. 

 Middle lamella, 88 (Fig. 66). 

 Midrib,. 34. 

 Mineral matters in cell-wall, 77 



(Figs. 51, 52). 

 Monadelphous, 462. 

 Monocarpous, 417. 

 Monochlamydeous, 457. 

 Monoclinous, 61, 310, 394. 

 Monocyclic, 450. 

 Monoecious, 61, 310, 395. 

 Monomerous ovary, 465. 

 Monopodial branch-system, 19. 

 Monosiphonous, 266, 271. 

 Monostely, 102. 

 Monosymmetrical, 7, 454. 

 Morphin, 186. 

 Morphology, 1. 



of asexual reproductive organs, 



51. 



sexual organs, 58. 

 of the tissue-systems, 101. 

 Morphological differentiation, 3. 

 Motile region, 225. 

 Motility of protoplasm, 225. 

 Movement, 158, 204, 205. 

 conditions of, 223. 

 induced, 205, 211. 

 mechanism of, 224. 

 of cellular members, 207. 

 of growth, 207. 

 of protoplasm, 206. 

 of variation, 207 

 spontaneous, 206. 

 Mucilage, 187. 



conversion of cell-wall into, 77, 



109. 



secretion of, 98, 101, 167. 

 Mucro, 36 (Fig. 23). 

 Mucronate, 37. 

 Multijugate, 35. 



Multilateral symmetry, 4 (Fig. 1). 

 Multilocular ovary, 466 (Fig. 282). 

 Mycelium, 275. 

 Mycorhiza, 275. 

 Myrmecophilous plants, 166. 

 Myrosin, 187. 

 Myronate of potash, 187. 

 Myxopod-stage, 283. 



Napiform root, 45. 



Neck, of archegonium, 311 (Fig. 



194), 350, 429. 

 Nectary, 96, 166, 202, 470. 

 Negative geotropism, 171, 218. 



heliotropism, 169, 216. 



pressure, 180. 



Nicotin, 186. 



Night-position, 173, 213. 



Nitrogen, 188, 190. 



Nitrogenous organic substances 



reserve materials, 201. 



Node, 11, 29. 



Non-metallic elements of food, 188. 



Non-nitrogenous organic sub- 

 stances, 186. 

 reserve materials, 201. 



Nucellus, 398, 469. 



Nuclear division, 84. 



Nucleo-hyaloplasm, 69. 



Nucleolus, 66, 69. 



Nucleus, 63, 66, 68 (Fig. 37). 



Nut, 473. 



Nutation, 211. 



Nutritive properties of protoplasm, 

 Io8. 



Nyctitropic movements, 173 (Fig. 

 125), 213. 



Obcordate, 37. 



Obdiplostemonous, 452 (Fig. 268). 

 Oblique leaf, 8, 33. 



plane of flower, 448. 

 zygomorphy, 7. 

 Oblong, 37. 

 Obovate, 37. 

 Obtuse, 37. 



Ocrea, 31, 523 (Fig. 337). 

 Octant-wall, 314, 347, 366 (Fig. 218). 

 Oidium-cells, 277, 304. 

 Oil-drops, 80. 

 Oil-gland, 97 (Fig. 76). 

 Oils, fixed, 187. 

 Oily seeds, 80, 201. 

 Oleic acid, 187, 198. 

 Olein, 187, 198. 

 Oligomery, 449. 

 Oligotaxy, 452. 

 Ooblastema-filatnents, 273. 

 Oogamy, 241, 277. 

 Oogonium, 60, 237, 241, 278, (Fig* 



139, 140, 147, 148, 150, 158, 



167). 

 Oosphere, 59, 241, 277 (Figs. 147, 



242, 311 (Fig. 194), 351 (Fig. 



223). 409 (Fig. 242). 

 Oospore, 59, 241, 277 (Fig. 167), 312, 



851, 414. 



Opening and closing of flowers, 176. 

 Operculum, 317, 820, 338, 843 (Figs. 



208, 210). 



Opposite members, 13. 

 Optimum-temperature, 160. 

 Orbicular, 479. 

 Organs, 1, 157. 



reproductive, 51, 58, 894, 459. 



