404 
Keel, *199. 
Kidney-shaped, *131. 
Knots, *102. 
Labiate, *203. 
Ladyfern, 286. 
Lanceolate, *131. 
Lateral buds, 63, 121. 
Leaf, 130-139*. 
Leaf, accumulation 
matter in, 165. 
iLeaf-arrangement, *140,*141, *142, 
*143, 
Leaf-bases, *132. 
Leaf-buds, 122, 128. 
Leaf, fall of, 175, 176. 
Leaf-like stems, 78, 79, *81. 
Leaf-margins, *132. 
Leaf-mosaics, 142, *143. 
Leaf-outlines, *131. 
Leaf-sections, *151, *154. 
Leaf-spine, *348. 
Leaf-stalk, 130. 
Leaf-tendril, *138. 
Leaf-tips, *151. 
Leaf-traces, 155. 
Leaves as insect-traps, *342, *343. 
Leaves, compound, *137, *138, 139. 
Leaves cutting, 350, *351. 
Leaves, divided, 143. 
Leaves, functions of, 155-174. 
Leaves, movements of, *144, *145, 
*146. 
Leaves, simple, 137. 
Leaves, structure of, 150-158*. 
Legume, 223. 
Lemon, study of, 217, 218. 
Lenticels, 104. 
Leucoium, pollen tube with gener- 
ative cells, *214. 
Lianas, *73. 
of mineral 
FOUNDATIONS OF BOTANY 
Lichen, 232. 
Lichenes, 232. 
Lichens, nature of, 273, 274. 
Lichens, study of, 270-273*. 
Light, exposure to, 140-149*. 
Light, movements towards, 148, 
149. , 
Lignin, 171, 172. 
Lily leaf, 150. 
Lily, pollen grains producing tubes 
on stigma, *214. 
Limb of calyx or corolla, 200. 
Lime, 165. 
Linden, fruit cluster of, *377. 
Linden fruit, *377. 
Linden wood, structure of, *100. 
Linear, *131. 
Liverworts, 277—281*. 
Living parts of the stem, 104, 105. 
Lobe, 201. 
Locules, 203. 
Locust, pinnately compound leaf 
of, *138. 
Locust, thorn-stipules of, 350. 
Luffa, 86. 
Lupine, white, 8. 
Lycopodiales, 232. 
Lycopodium, study of, 291, *292. 
Macrospores, 291, *302. 
Macrosporophyll, 302. 
Magnolia, forking of, *70, *71. 
Mahogany wood, structure of, *101. 
Maldive nut, 381. 
Mallows, pollination in, 364. 
Malt, 13. 
Maltose, 116. 
Mangrove, *319. 
Maple fruit, *223. 
Maple leaf, 134. 
Marchantia, study of, 278-281*. 
