INDEX 



343 



Marsilia, 158. 



Mega-sporangium, 152, 177, 179. 

 Megaspore, 152, 165, 167, 179, 201, 



203. 



Megasporophyll, 152, 165, 177, 199. 

 Melissa, 275. 

 Mentha, 229, 274. 

 Meristem, 281. 



Mesophyll, 141, 142, 191, 295. 

 Mesophytes, 324. 

 Mestome, 282. 



Micropyle, 178, 201, 202, 206. 

 Microspira, 76. 

 Microspha?ra, 58. 

 Microsporangium, 152, 176, 197. 

 Microspore, 152, 165, 166, 179, 197, 



201. 

 Microsporophyll, 152, 165, 174,196, 



198. 



Midrib, 234. 

 Mildews, 57. 

 Mimosa, 265, 808, 309. 

 Mint : see Mentha. 

 Mint family : see Labiatas. 

 Monocotyledons, 208, 232, 236, 289. 

 Monoecious, 115. 

 Monopodial, 35. 

 Monotropa, 270. 

 Moon wort: see Botrychium. 

 Morels, 60, 62. 



Morning-glory : see Ipomoea. 

 Morphology, 297. 

 Mosses, 93, 119, 124. 

 Mother cell, 9. 

 Mougeotia, 31. 

 Movement, 303. 

 Mucor, 49, 52, 53, 54, 55. 

 Mullein : see Verbascum. 

 Musci, 119. 

 Mushrooms, 68. 



Mustard family : see Cruciferae. 

 Mycelium, 49. 



Mycoinycetes, 50. 

 Mycorrhiza, 87, 88. 

 Myristica, 214. 

 Myrmecophytes, 90, 91. 

 Myxomycetes, 74, 75. 



N 



Naias, 237. 

 Narcissus, 247. 

 Nemalion, 43. 

 Nepeta, 275. 

 Nicotiana, 227, 275. 

 Nightshade family : see Solanacea?. 

 Nostoc, 18. 



Nucellus, 178, 179, 201, 202, 203. 

 Nucleus, 7. 

 Nutation, 304. 

 Nutmeg, 214. 

 Nutrition, 3, 299. 

 Nyctitropic movement, 309. 

 Nymphaeaceae, 261. 







Oak, 255, 256. 



CEdogonium : see Edogonium. 

 Onoclea, 145, 147, 148. 

 Oogonium, 16. 

 Oosphere, 16. 

 Oospore, 16, 101. 

 Open bundle, 287. 

 Operculum, 122, 125. 

 Ophioglossum, 145, 149. 

 Orchidacea3, 249. 

 Orchids, 249, 252. 253, 254. 

 Orchid family : see Orchidacea?. 

 Origanum, 274. 

 Ornithogalum, 247. 

 Oscillaria, 19. 

 Osmunda, 145. 156. 

 Ostrich fern : see Onoclea. 

 Ovary, 199, 200, 202. 

 Ovule, 178, 179, 201, 203. 



