618 



BOTANY 



Hyponasty, 249 

 Hypophysis, *456, 457 

 Hypothecium, 359 

 Hysterophyta, 565 



Iberis, 519 



Iceland Moss, Cetraria 



Idioblasts, 83, *108 



Ilex, 537 



Illiciwm, 515 ; ethereal oil, 73 



Imbibition, 177, 188, 247 



Imbricated leaves, 37 



Impatiens, 533 ; collenchyma, *77 ; epi- 

 dermis, *92 ; vessels, 101, *107 ; 

 stems, 187 



Incised leaves, 30 



Independent locomotion, 241 



India-rubber plant, Ficus elastica 



Indigo, 562 



Individual variations, 154 



Indusium, 402 



Inflorescence, 460 



Infructescence, 460 



Infusoria, 320 



Initial layer, 121 



Insectivorous plants, 206, 213-216 



Insects, fertilisation by, 284 



Integuments, 431 



Intercalary growth, 21 



Intercellulars, 87 ; air space, 87, *108, 

 *221 ; lysigenic, 88 ; secretion, 100 ; 

 medullary rays, 134 ; passages, 222 



Interfascicular cambium, 121 



Internal development of organs, 237 



Internodes, 20 



Intine, 430 ; of the Pteridophytes, 399 



Intramolecular respiration, 219 ; in fer- 

 mentation, 212 



Introrse anthers, 447 



Intussusception, growth by, 79, 231 



Inula, 597-599 



Inulin, 74 



Invertin, 203 ; in the protoplasm, 54 



Iodine in plants, 172, *199, 334 



Ipecacuanha, 228 



Ipomoea, 577 ; free coils, *260 



Iriartea, root-thorns, 43 



Iridaceae, *469 ; diagram, 38, *39, 469 



Iridescence, 223 



Ms, *469, 470 ; epidermis, *93, *113 



Iron in plants, 172, 174, 220 



Irritability, movements of, see Turgor, 

 changes of 



Isatis, 519 



Isoetes, 415, 416, *422 ; desiccation, 179 



Isogamy, 318 



Jasione, 592 

 Jasminum, 573 

 Jateorhiza, 516 

 Jessamine, Jasminum 



Jewel-weed, Impatiens 

 Judas'-ear, Auricularia 

 Judas-tree, Cercis 



Juglans, *498, 499 

 Juncaceae, 465 ; haulm, 28 

 Juncaginaceae, 483 

 Juncus, *465 ; leafless, 25 

 Jungermanniaceae, 389, 390 

 Juniperus, *439, *442; leaves, 47; attacked 

 by Gymnosporangium, 367 



Kale, Orambe 

 Kamala, 543 

 Karyokinesis, 60, *61 

 Kelp, 334 

 Kerria, 555 



Kleinia articulata, 194 

 Klinostat, 263 

 Knarvel, Scleranthus 

 Knautia, 595 

 Knot-Grass, Polygonum 

 Kohl-rabi beads, 373 

 Kola nuts, *529 

 Krameria, 559 \ 



Labellum, 485, 487 



Labiatae, 585, *586 ; nodes, 21 



Labiatiflorae, 585, 598 



Laburnum, Gytisus 



Lachnea, apothecium, *359 



Lactarius, 372, 373 



Lactam, *589, 599 ; sap, 84 ; Scariola, 254 



Lactucarium, 599 



Lamina, 29 



Laminaria, 145, *329, 334 



Laminariaeeae, 329, 334 



Lamium, *586, 587 



Lappa, *595, 598, 599 



Larch, Larix 



Larix, 440 / 



Larkspur, Delphinium 



Lateral geotropism, 258 



roots, 42 

 Latex cells, 83, 84 



Lathraea, 584 ; albumen crystals, 71 

 Lathyrus, 561 ; leaf-tendrils, 35, *36 

 Laudatea, 380 

 Lauraceae, 516 

 Laurel, Lauras 

 Lam~us, 517 ; ethereal oil, 73 

 Lavandula, 587 

 Lavatera, 530 

 Lavender, Lo.vandula 

 Lead in plants, 172 

 Leaf, development, *16, *18, *19, 28 



-cushion {see Pulvinus) ; -scars, 34 



tendrils, 35 ; tissue, 113 ; floral, 114 



foliage, 115 ; traces, 116 

 Leaves, arrangement, 37 ; falling, 143 



transpiration, 190 



