INDEX 



343 



Marsilia, 158. 



Megasporangium, 152, 177, 179. 

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



203. 

 Megasporophyll, 152, 165, 177, 199. 

 Melissa, 275. 

 Mentha, 229, 274 

 Meristem, 281. 



Mesophyll, 141, 1J&, 191, 295. 

 Mesophytes, 324 

 Mestome, 282. 



Micropyle, 178, 201, 202, 206. 

 Microspira, 76. 

 Microsphaera, 58. 

 Microsporangium, 152, 176, 197. 

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



201. 

 Microsporophyll, 152, 165, 174,196, 



198. 

 Midrib, 234 

 Mildews, 57. 

 Mimosa, 265, 308, 309. 

 Mint : see Mentha. 

 Mint family : see Labiatae. 

 J fonocotyledon sJjO e, 232, 236, 289 . 

 Monoecious, 115. 

 Monopodial, 35. 

 Monotropa, 270. 

 Moonwort : 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 Crucif erae. 

 Mycelium, 49. 



Mycomycetes, 50. 

 Mycorrhiza, 87, 88. 

 Myristica, 214. 

 Myrmecophytes, 90, 91. 

 Myxomycetes, 74 75. 



N 

 Xaias, 237. 

 Narcissus, 247. 

 Neinalion, 43. 

 Nepeta, 275. 

 Nicotiana, 227, 275. 

 Nightshade family : see Solanaceae. 

 Nostoc, 18. 



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

 Nucleus, 7. 

 Nutation, 304 

 Nutmeg. 214. 

 Nutrition, 3, 299. 

 Xyctitropie movement, 309. 

 Nymphaeaceae, 261. 



O 

 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. 

 Orchidaceae, 249. 

 Orchids, 249, 252, 253, 254. 

 Orchid family : see Orchidaceae. 

 Origanum, 274 

 Ornithogalum, 247. 

 Oscillatoria, 19. 

 Osmunda, 145, 156. 

 Ostrich fern : see Onoclea. 

 Ovary, 199, 200, 202. 

 Ovule, 178, 179, 201, 203. 



