INDEX 



595 



Leaf buds, 207. 



Leaflet, 237, 237*, 238*. 



Leaf traces, 185, 186*. 



Leaves, 233-286; auricles, 235, 236*; 

 base, 235; blade, 235; cellular 

 structure, 246-252; compound, 

 237, 237*; development, 234; 

 general structure, 242-246; man- 

 ufacture of food, 252; margin, 

 235; mosaic, 241, 241*; parts, 

 234; perfoliate, 235, 236 *; pri- 

 mary and secondary, 234; of 

 Corn, 235, 236*; rosette, 241, 

 241*; sessile, 235, 235*; sheath, 

 235; simple, 237, 237*; special 

 forms, 270; stipules, 234, 235; 

 transpiration, 260; use of the 

 photosynthetic food, 273. 



Legume, 80, 485, 82*, 485*. 



Legumelin, 282. 



Legumes, 156. 



Leguminosae, 58; described, 484. 



Legumin, 282. 



Lemma, 17, 22, 18*, 19*, 22*. 



Lemna, 163. 



Lemons, 77, 133. 



Lenticels, 184, 184*, 185*. 



Leptosporangiate, 430. 



Lettuce, prickly, 85; Sea, 310, 310*; 

 Wild, 495. 



Leucin, 282. 



Leucoplast, 115. 



Leucosin, 282. 



Levulose, 278. 



Lichens, 363; described, 379-382. 



Life Cycle, of Angiosperms, 469*; of 

 Ferns, 433*; of Flowering Plants, 

 6, 7*; of Marchantia, 412*; of 

 Moss, 421*; of Pine, 457*; of 

 Wheat Rust, 399*; of Cedar 

 Rust, 403*. 



Light, as influencing growth, 220; as 

 an ecological factor, 502; as 

 related to leaves, 237; as related 

 to photosynthesis, 257, 257*; as 

 related to transpiration, 263. 



Lignin, 115, 276. 



Ligulate flowers, 253, 24*. 



Ligule or rain guard, 235. 



Lilac Mildew, 373. 



Lily, embyro sac, 465*; family, 498. 



Linaceae, 486. 



Linseed oil, 61; 283. 



Lipase, 94; 284. 



Liverworts, 504; described, 406-417. 



Loam, 154. 



Locules, of anther, 41, 41*; of fruit, 



77,78,77*, 78*; of ovary, 34, 38*. 

 Lodicules, 17, 20, 18*, 19*, 22*. 

 Longevity of seeds, 67; discussed, 71- 



74. 



Macrocystis, 319, 319*. 



Madder family, 492. 



Magnesium, 158. 



Main roots, 136. 



Malic acid, 287. 



Mallow family, 487. 



Maltase, 284. 



Maltose, 279. 



Manufacture of food, in leaves, 252- 

 260; in stems, 169. 



Maple, genus, 292; family, 487. 



Marchantias, 407-415. 



Marchantiales, 407-414. 



Marchantia polymorpha, 407-414. 



Margin, of leaves, 235. 



Marguerite, 494, 494*. 



Mass culture, 577. 



May Apple, or Mandrake, 180, 180*. 



Meadows, 508. 



Medicago saliva, fruits, 82*. 



Medullary rays, 132,197, 198*, 201*, 

 202*. 



Megaspore, 442, 441*; formation, 463, 

 462*; mother cells, 463, 461*, 

 462*. 



Megasporangium, 442, 441*. 



Megasporophyll, 442, 441*. 



Megastrobilus, 448*. 



Melon type of fruit, 79, 78*. 



Membrane, of the cell, 114, 115*; of 

 the nucleus, 114, 114*; semi- 

 permeable, 117. 



Mendel, Gregor, 539, 540*; experi- 

 ments, 541 ; law of dominance, 544. 



