INDEX 
391 
Megasporangia, 332. 
Megaspore, 332. 
Megasporophyll, 349, 362. 
Mesophyll, 39. 
Mesophytes, 175, 214. 
Micropyle, 350. 
Microsporangia, 332. 
Microspores, 332. 
Microsporophyll, 346, 859. 
Migration, 147. 
Mildews. 273. 
Monocotyledon, 85, 365. 
Mosaic, 24. 
Mosses, 316. 
Motile leaves, 10, 193. 
Moulds, 276. 
Mucor, 268. 
Mushroom, 285. 
Mycelium, 265. 
Mycorhiza, 159. 
Naked flower, 364 
Nectar, 123. 
Nostoc, 233. 
Nucellus, 350. 
Nucleus, 227. 
Nutrition, 3, 149, 223. 
Oak, 69. 
Oogonium, 231. 
Oospore, 240. 
Orchid, 98. 
Organ, 3. 
Oscillaria, 234. 
Ovary, 125, 362. 
Ovule, 350. 
Palm, 86. 
Parasite, 106, 150, 157. 
Peronspora, 271. 
Petal, 79. 
Petiole, 35. 
2G 
Phaeophyceae, 248. 
Photosynthesis, 28, 150. 
Phycomycetes, 267. 
Physiology, 149. 
Pine, 65, 66. 
Pistil, 77, 350, 363. 
Pitcher plants, 165. 
Pith, 83. 
Plastid, 228. 
Pleurococcus, 236. 
Pollen, 77, 346 ; tube, 351. 
Pollination, 77, 121, 123. 
Potato, 76. 
Protandry, 128. 
Protection, 41, 137, 189. 
Proteid, 153. 
Prothallium, 322. 
Protogyny, 128. 
Protonema, 303. 
Protoplasm, 227. 
Pteridophytes, 222, 320, 343, 344. 
Rain, 51. 
Raspberry, 91. 
Receptacle, 81. 
Redbud, 10. 
Reproduction, 3, 109, 223, 228. 
Respiration, 32, 154. 
Rhizoids, 308. 
Rhodophyceaa, 254. 
Rivalry, 146. 
Root, 89, 107, 138. 
Rootstock, 75. 
Root tubercles, 161. 
Rosette habit, 17, 47. 
Rubber tree, 104. 
Saprolegnia, 267. 
Saprophyte, 150, 157. 
Sargassum, 251. 
Seed, 352 ; distribution, 79, 112. 
Selaginella, 340. 
