INDEX 



373 



Insects, vision of, 171. 



Insertion of floral organs, *156. 



Internode, 26, 65. 



Involucre, App. I, *359. 



Ipomoja Jalapa, 38. 



Ipomoea, rate of increase of , 201 , 202. 



Irritability in plants, nature and 



occurrence of, 45. 

 Ivy, aerial roots of, 30, *31. 



Keel, *150. 



Kidney-shaped, App. I, *3.j5. 



Labiate, *152. 



Lanceolate, App. I, *355. 



Lateral buds, 59, *88, *8',1. 



Leaf, 97-142*. 



Leaf, accumulation of mineral 



matter in, 135. 

 Leaf, fall of, 141, 142. 

 Leaf -arrangement, 105-10.^*. 

 Leaf -bases, App. I, *356. 

 Leaf-buds, *89, *90. 

 Leaf-like stems, 61, *li2, 63. 

 Leaf-margins, App. I, *357. 

 Leaf-mosaic, 106, *107. 

 Leaf-outlines, App. I, *355. 

 Leaf-sections, 127, *li'8. 

 Leaf-spine, *123, 124. 

 Leaf-stalk, *98. 

 Leaf-tendril, *103. 

 Leaf-tips, App. I, *356. 

 Leaf-traces, 79, 130. 

 Leaves as insect-traps, 119-122*. 

 Leaves, compound, *102, *103, 104. 

 Leaves, cutting, 125, *126. 

 Leaves, divided, *99, *100, 107, 



108, *110. 

 Leaves, functions of, 130-142*. 

 Leaves, movements of, 108-112*. 



Leaves, simple, 97-103*. 

 Leaves, structure of, 127-130*. 

 Legume, 183, 187, *1!I4. 

 Lemon, study of, 181, 182. 

 Lenticels, 76. 

 Lianas, 56. 

 Lichens, 253-255*. 

 Life histories, *277, *285. 

 Light, exposure to, 10.5-112*. 

 Light, movements towards, *111, 



112. 

 Lily leaf, 127. 

 Lily, pollen grains producing tubes 



on stigma, *1G5. 

 Limb of calyx or corolla, 152. 

 Lime, 135. 



Linden, fruit cluster of, *1'J2. 

 Linden fruit, *192. 

 Linden wood, structure of, *73. 

 Linear, App. I, *355. 

 Liverworts, 205-272*. 

 Living parts of the stem, 76-78. 

 Locules, *155. 

 Locust, pinnately compound leaf 



of, *103. 

 Locust, thorn-stipules of, 124, *125. 

 Luffa, 68. 

 Lunularia, 266. 

 Lycopodium, *202, 293. 



Jialdive nut, 195. 

 Malt, 11. 

 Maltose, 85. 

 Mangrove, 204. 

 Maple fruit, *187. 

 Maple leaf, 99, 100. 

 Jlarchantia, type study, 266-270*. 

 Marsilia, *287. 



Mechanics of monocotyledonous 

 stems, 66, 67. 



