578 



INDEX 



542*; as demonstrated in Wheat, 

 552*. 



Meristem, 126, 204, 126*, 204*. 



Meristematic tissue, 126, 126*; of 

 buds, 204, 204*; of Grass stems, 

 213, 214*; of root tip, 143, 144*. 



Mesophyll, 244; described, 246, 250*. 



Mesophytic societies, 504; described, 

 506. 



Metabolism, 116, 273; anabolic and 

 catabolic, 273. 



Micro-organisms of the soil, 155. 



Micropyle, 39, 57, 38*, 57*. 



Microsphaera, 373. 



Microspore, 442, 441*; formation, 

 461, 462*; mother cells, 461, 461*. 



Microsporangium, 442, 441*. 



Microsporophyll, 442, 441*. 



Microstrobilus, 446, 447*. 



Middlings, 65. 



Midrib, 245. 



Mildews, Downy, 355-360; Powdery, 

 373-375. 



Milkweed, 83, 133,83*. 



Mistletoe, 163. 



Mixed buds, 207. 



Moisture, given off in transpiration, 

 260, 260*; of the soil, 217; re- 

 quired for germination, 91. 



Molds, 155; Blue and Green, 375-377; 

 True, 360-363; Water, 353-360. 



Monadelphous stamens, 15. 



Monocotyledons, embryo, 466, 467*; 

 families, 495; origin, 471; seeds, 

 66; seedling, 102*, 103*, 104*, 

 105*; stems, 170; structure of 

 stems, 187-192. 



Monoecious, 14. 



Moonworts, 435, 434*, 435*. 



Morchella esculenta, 365, 365*, 366*. 



Morels, 364, 365*. 



Morning Glory, cotyledons, 111; 

 plumule, 109; stem, 168, 175, 

 177*. 



Morphine, 283. 



Morphology, 2, 289. 



Mosaic, of leaves, 241, 241*. 



Mosses, 292, 405; described, 417-424. 



Mucorales, 360-363. 



Mullein, leaf, 266*. 



Multiple fruits, 80, 80*. 



Multiplication of cells, 123, 125*. 



Musci, 405. 



Mushrooms, 352, 382, 384, 385*, 386*. 



Mustard, Black, 483, 483*; family, 



482. 



Mutant, 527. 

 Mutation, 525, 528*; in Evening 



Primrose, 529. 

 Mutation theory, 527; compared with 



Darwinism, 531. 

 Mycelium, 352. 

 Mycorhiza, 155, 155*. 

 Myrsiphyllum, 169. 

 Myxobacteria, 350. 

 Myxomycetee, 336; described, 336- 



341; economic importance, 339. 



Naked Ascus Fungi, 364, 377, 376*. 



Naked buds, 205. 



Nasturtiums, 241*. 



Natural history, 524. 



Natural selection, 517. 



Navicula viridis, 332*. 



Nectar, 133. 



Nectar glands, 133, 133*. 



Nectarine, 528, 561. 



Nemalion, 326, 326*. 



Nereocystis, 319. 



Nerves, 245. 



Net-veined leaves, 245, 244*. 



Nicotine, 283. 



Nidularia, 392, 392*. 



Nightshade family, 491. 



Nitrogen, 133. 



Nodes, 166. 



Nostoc, 209, 208*. 



Nucellus, 38, 448, 454, 35*, 36*, 38*, 

 449*, 455*. 



Nuclear membrane, 114, 114*. 



Nuclear sap, 114, 114*. 



Nucleolus, 114, 114*. 



Nucleo-proteins, 281. 



Nucleus, 39; described, 114, 114*; 

 endosperm, 40, 44, 51; of leaf 

 cell, 251, 251*; primary en- 



