536 



INDEX 



Macrosporophyll, 397, 402, 409, 411. 



Madder family, 448. 



Madders, 448. 



Magnesium, 124, 125. 



Magnesium sulphate, 125. 



Maiden hair fern, 358. 



Maiden hair tree, fruit of, 214. 



Maize, 427. 



Male nuclei, 200. 



Mallow family, 443. 



Malt diastase, 133. 



Malt sugar, 23. 



Malvaceae, 443. 



Mamme, 196. 



Mammoni, 196. 



Manila hemp, 432. 



Maple family, 442. 



Marchantia, 334-341, 345. 



Marchantiales, 345. 



Marsilia, 47. 



Matteuccia struthiopteris, 370. 



Medicaga denticulata, 129. 



Medullary rays, 62, 66. 



Megasporangium (a), 378. 



Megaspore, 378. 



Meibomia, 221. 



Melampsorella cerastii, 309. 



Mendelian hybrids, 489-491. 



Mendelism, 489. 



Mendel's law, relation to plant breed- 

 ing, 506. 



Meristem, 37, 61. 



Mesophyll, 91, 92, 94. 



Mesophytes, 456, 460. 



Mesophytic, 456. 



Mesquite tree, 33. 



Metabiosis, 132. 



Metabolism, 113, 114, 124. 



Metroxylon laevis, 396, 431. 



Metroxylon rumphii, 396, 431. 



Microbes, 128. 



Micrococcus, 266, 268. 



Microcycas, 400, 402. 



Micropyle, 6, 187 200, 201, 391, 

 393, 400, 411, 414, 416. 



Microsphsera, 272, 290. 



Micros phaera alni, 290. 



Microsporangium, (a) 378, 390, 391, 



398. 

 Microspore, 378, 379, 386, 390, 391, 



399, 409, 419. 



Microsporophyll, 390, 402, 409. 

 Migration of plants, 461-468. 

 Migration of plants, barriers to, 467. 



Migration, causes of, 464. 



Migration of plants, structural char- 

 acters favoring, 462-464. 



Mildews, 272, 282-285, 289-291. 



Milk weed, 149. 



Mimosa pudica, 87. 



Mistletoe, 136. 



Mitchella, 448. 



Mnium, 342, 346, 348. 



Molds, 140, 272, 274-282. 



Molds, conjugating, 274. 



Monadelphous, 147. 



Monilia fructigena, 293, 294. 



Monocotyledons, 57-62, 172-181, 

 225, 230, 422-432. 



Monoecious, 145, 172, 178, 189, 198, 



259, 2 79> 347- 

 Moncecism, 406, 419. 

 Monohybrids, 507. 

 Monotropa uniflora, 93, in, 138. 

 Moraceae, 435. 

 Morchella, 295. 

 Morchella esculenta, 296. 

 Morels, 294-296. 

 Morphology, 224, 231421. 

 Mosses, 229, 346-356. 

 Mosses, "fruit" of, 215. 

 Mosses, review of, 355. 

 Mother cell, of spores, 350, 390, 409. 

 Mountain laurel, 191, 198, 445. 

 Mucor, 272, 279. 

 Mucor mucedo, 278, 280. 

 Mucor stolonifer, 276. 

 Mucorales, 279. 

 Mucorineae, 279. 

 Mulberry family, 435. 

 Musa paradisiaca, 432. 

 Musa textilis, 432, 435. 

 Muscarine, 326. 

 Muscineae, 229, 346-356. 

 Mushrooms, 321-329. 

 Muskmelon, 449. 

 Mutant, 491, 492. 

 Mutation, 491-493. 

 Mutualistic symbiosis, 132. 

 Mycelium, 137, 273, 283, 287, 306. 

 Mycoplasma, 316. 

 Mycorhiza, 129-132, 138. 

 Myrsiphyllum, 53. 



Narcissus, 181. 

 Nectar, 187. 

 Nectar glands, 187, 197. 

 Nectaries, 187. 



