260 



INDEX. 



H 



Habenai'ia, 127. 



Hairs, Jfi, 92. 136, 146, J03, 303. 



Halophytes, 169, 349. 



Harebell, 19, 80. 



Hawthorn, 36. 



Heart-wood, 151. 



Heat, 113, 138, 145, 164. 



Heath plants, 189, 200, 314. 



Heliaiithemum, 233. 



Heliotropism, 13, 13, 68, 7,', 7i 



139. 

 Hemlock, 190. 

 Horse-chestnut, ^J^l. 

 Hosts, 106. 

 House leek, 19. 

 Houstonia, 129, 135. 

 Huckleberry, 314. 

 Hudsonia, 313. 

 Hura crepitans, 130. 

 Hydrogen, 153. 

 Hydrophytes, 168, 170, 174. 

 Hydrotropism, 91, 138. 



I 



Insects and flowers, 133. 

 Iris, 12G, 133. 

 Isoetes, 9^, 95, 208. 

 Ivy, 99. 



Juncus, 77. 

 Juniper, 51, 238. 



Lactuca, 12, 197, 198. 

 Lady-slipper, 132, 133, 134, 135, 



136. 

 Lakes, 143, 148. 



Laminaria, 177. 



Larch, 178, 190. 



Latex, 136. 



Leafless forests, 836. 



Leaflet, 19. 



Leaf-relation, 53. 



Lemna, 97. 



Lespedeza, ^. 



Lianas, 60, 61, 62, 63, 64, 102, 



245, 246. 

 Lichens, 194, 309, 214. 

 Life-relations, 4, 7, 8, 53, 77. 

 Light, 143, 167, 197. 

 Light-relation, 7, 8. 

 Lily, 38, 40. 

 Live-for-ever, 18. 

 Live oak, 101. 

 Liverworts, 118. 

 Locomotion, 113. 

 Locust, 207. 

 Long moss, 96, 101. 

 Loosestrife, 130, 135. 

 Lotus, 180. 



M 



]\rangroves, 251, 252, 253. 



Maple, 26, 115, 116. 



JIaranta, 38. 



Marchantia, t07. 



Meadows, 334, 235. 



Meclianical tissue, 172. 



.Mcsophyll, 38, 39, 4J), 4I, 42, 152. 



Mesophytes, 168, 230. 



Migration, 58, 75, 147. 



Mildew, 109, 157. 



Milkweed, 117. 



Mimosa, 199. 



.Mistletoe, 107. 



M(5ld, 109. 



M<iii<K!otyledons, 35, 85, AV, 116, 



ISV,. 

 Moors, 187, 188. 



