INDEX 



361 



Light, plant associations, 326. 

 Liliaceae, 277. 

 Lilies, 277. 

 Lime, 300. 

 Liverworts, 165. 

 Lucerne, 293. 

 Lycopodium, 202. 

 Lycopods, 201. 



Madders, 307. 



Maize, 268. 



Male cell, 235. 



Mandarin, 299. 



Mangrove swamp, 336. 



Maple sap, 58. 



Marchantia, 167. 



Meadows, 345. 



Megaspore, Angiosperm, 235; coni- 

 fer, 214; Selaginella, 205. 



Mesophyll, 17. 



Mesophytes, 327, 345. 



Microbe, 130. 



Micropyle, 229. 



Microspore, conifers, 212; Sela- 

 ginella, 205. 



Mildew, 144; downy, 142. 



Midrib, 7. 



Mold, black, 139. 



Monocotyledons, 50, 56, 230; 

 classification, 262 ; embryo, 

 237. 



Morel, 148. 



Mosaic, 13. 



Moss, 175 ; flower, 177 ; groups, 

 181. 



Motile leaves, 30. 



Mucor, 139. 



Mushroom, 153. 



Muskmelon, 314. 



Mustard Family, 286. 



Mycelium, 140. 



Mycorhiza, 159. 



Nectar, 36, 242. 

 Needle-leaves, 211. 

 Nepenthes, 38. 

 Nightshades, 304. 

 Nitrogen fixation, 134, 135. 

 Node, 5, 41. 

 Nostoc, 99. 

 Nucellus, 229. 

 Nucleus, 103. 

 Nutmeg melon, 314. 

 Nutrition, 3. 



Oats, 266. 



(Edogonium, 108. 



Olive, 313. 



Oogonium, Fucus, 124; mildew, 



145; (Edogonium, 110; Perono- 



spora, 143; red Algae, 126; 



Vaucheria, 112. 

 Oospore, 107. 

 Orange, 299. 

 Orchidacese, 278. 

 Orchids, 278; pollination, 248. 

 Organ, 3. 

 Oscillatoria, 100. 

 Osmosis, 79. 

 Ovary, 227. 

 Ovule, Angiosperm, 228; conifer 



214. 



Palisade layer, 25. 

 Palisade tissue, 17. 

 Palms, 271. 

 Pappus, 310. 

 Parasite, 129. 

 Pasture grass, 271. 

 Pea, 293. 

 Peach, 288. 

 Peanut, 294. 

 Pear, 291. 



Peat, 175; bogs, 33S. 

 Perianth, 222. 



