Index 



407 



Mineral crystals, 384 

 Mistletoe, 108 

 Monocotyledon, 121, 128 

 Monocotyledons, 116, 117 



leaves of, 123 

 Monoecious flowers, 69 

 " Monoeciously polygamous" 



flowers, 73 

 Moonworts, 266 

 Morning-glory vines, 236, 239 

 Mosses, 248, 383 

 Moth, 34 

 Moths : 



crepiscular, 200 



hawk, 202, 203 



humming-bird, 203 



nocturnal, 33, 200 



twilight, 33 



sphinx, 203, 221 

 Mountain evergreens, 272 

 Mucilage, 136, 255, 384 

 Mullein, 320, 347 

 Miiller quoted, 42, 173, 211, 304 



Naked flowers, 66 



National flower of Scotlan,., 



337 



Natural wind-break, 271, 272 . 

 Nature's most valuable colon- 

 ists, 156 

 Nectar, 29, 30 

 Neck-canal cells, 255 

 Needle-like leaves, 272, 274, 



276, 279 

 Nettle, 332, 333, 336 



flowers of, 330, 331 



sting of, 329, 330 

 Nettles, 317 

 Net-veined leaves, 148 

 Night-blooming cereus, 27, 200 



flowers, 200 

 Nitrogen, 90 

 Nocturnal flowers, 225 



moths, 200 



Nodes of grasses, 158 

 November violets, 375, 378 

 Nuts, 71, 82 



Oak, 56, 62, 64, 69, 85, 86, 120 



Oaks, 93 



Oat, 161 



Oat-blossoms, 162, 165, 166 



Oats, 151 



Oat-spikelets, 168 



October dandelions, 375 



Oenothera biennis, 213 



Ogle (Dr.), 80 



Oil, 119, 384 



Oleander, 106 



Oosphere, 257 



Oospore, 257, 259 



Open fibre-vascular bundles, 



134 



Ophioglossaceae, 266 

 Orange-tree, 326 

 Orchid, 27, 47 

 Orchids, 26, 34, 116 

 Osmunda, 262, 265 

 Ovary, 47 



Ovule of a cone-bearer, 290 

 Ovule of the yew, 297 

 Oxygen, 90, 100, 101 



Painted-cup, 98 



Paleae, 164, 165 



Palet, 164 



Palmetto trunk, 127, 130, 131 



Palmettos, 126, 140 



Palms, 116 



Panic-grass, 153 



Papyrus, 197 



Parallel veins, 123 



Parasites, 98, 99, 269 



Parasitism, 77, 98 



Pasture thistles, 342 



Pear-tree, 55 



Peas, 119 



Peel of a potato, 386 



Peony, 28 



Perfect flower, 77 



Perigynium, 196 



Petals, 21 



Phanerogams, 248 



Phosphorus, 90 



Phosphoric acid, 367 



Phragmites communis, 174 



Pickerel-weed, 186 



Pigment, 94.95, 97 



Pig-weed, 354 



Pinaceae, 270 



Pine, 270, 272, 282 



Pine-apple, 326, 329 



Pine, archegonia of, 292, 293 



Pine-drops, 269 



