INDEX OF PLANT NAMES 



507 



Heaths, leaves, 186 ; habitat, 190 ; 

 conducting system, 191, 249 ; 

 nectar, 356 ; cross-leaved, 

 386 



Heather, calcifuge, 65, 247-249 ; as 

 host, 235 



Hedera Helix, 88, 89 



Heliamphora, 274 



Helianthus, 149, 211 



annuus, transpiration, 



86, 87 ; no. of plas- 

 tids, 134, 13s 



tuberosus, 88 



Heliotropium, 76 



Helleborus, roots, 26 ; nectaries, 

 360 ; proterogyny, 383 



Hemerocallis, 26 



Hemlock, 118, 309 



Hemp, 340 



Hemp-nettle, 448 



Henslowia, 221 



Herminium monorchis, 369 



Hibiscus Trionum, 345 



Hieracium, 326 



flagellare, 327 



Pilosella, 21 



Hippohaes, 263 



Hippuris, 424 



Holly, air spaces of leaf, 85 ; cuticle, 

 176, 186, 190 ; leaves, 194, 

 292 ; protection against ani- 

 mals, 307 



Honeysuckle, liana, 303 ; scent, 

 357. 369 ; floral mechanism, 

 386 ; fall of corolla, 403 ; 

 reproduction, 458 



Hop, phototropic reaction, 123 ; 

 twining plant, 297 ; liana, 303 



House-leek, leaf structure, 133 ; 

 leaf succulent, 196 ; repro- 

 duction, 458 



Hornbeam, 455 



Horse chestnut, 445, 456 



Humboldtia laurifolia, 310 



Hyacinth, 187, 308, 348 



Hyacinthus, 26 



orientalis, 286 



Hydrangea, 100 



hortensis, 91, 87 



Hydrobryum, 294 



Hydrocharis, 49 



Hydrocotyle, 182 



Hydnora africana, 233 



Hypericum perforatum, 395 



Hypochnus cyanescens, 246 



Ice plant, 349 

 Imbauba tree, 310, 311 



Impatiens, 204 



balsamina, 44, 51 



noli-me-tangere, 397 



Incarvillea, 389 



Indian pipe, 241 



Ipomoea purpurea, 434 



Iris, leaf, 119 ; orientation, 124 



germanica, 88 



— — Pseudacorus, 387 



Ivy, air spaces of leaf, 85 ; tran- 

 spiration, 86 ; suction force 

 of guard cells, 104 ; shade 

 and sun leaves, 154 ; suction 

 force of epidermal cells, 163 ; 

 cuticle, 186 ; root climber, 

 295-296, 303 ; seed dor- 

 mancy, 423 ; leaves, 446 ; 

 reproduction, 458 ; poison, 



309 

 Ixora, 264 



JUNCUS, 414 



articulatus, 291 



buffonius, 397 



Juniper, 382 

 Juniperus, 176, 406 



oxycedrus, 309 



phcenicea, 309 



virginiana, 424 



Jussieua repens, 43 



Kelp, 68 



Kceberlinia spinosa, 35 

 Kceleria cristata, 29, 38 

 Krameria, 219, 237 



canescens, 221 



Kuhnia glutinosa, 47 



Laburnum, 392 



Lactuca Scariola, 124, 125 



Lagenaria, 229-301 



Laguncularia racemosa, 80, 416 



Laelia, 252 



Lathraea, 230, 232 



clandestina, 229 



Squamaria, 229, 230 



Lathyrus Aphaca, 300, 301 

 Lamium album, 289, 290 



amplexicaule, 397 



Laportea, 308 



Larch, leaf structure, 186 ; specific 



conductivity, 188 ; host, 225 ; 



ectotrophic mycorhiza, 245, 



246 ; insect pollination, 355 ; 



cones, 360 



