INDEX. 



641 



Hura crepitans, latex, 185; 

 laticiferous tubes, 439. 



Hyacinthus, raphides, 139; 

 root-cap, 413; stomata, 

 39,43 (Fig. 17); vascular 

 system, 320. 



Hyacinthus orientalis, cell- 

 wall, 71 (Fig. 23); paren- 

 chyma, 409 ; stomata, 35 

 (Fig. 10). 



Hydrangea hortensis, 484 ; 

 ligneous bundle, 470, 496. 



Hydrilla, root-cap, 413 ; 

 vascular system, 278, 368. 



Hydrilla verticillata, 369. 



Hydrilleae, 67, 278, 300. 



Hydrocharideae, air-spaces, 

 213. 



Hydrocharis, growing point 

 of root, 9 ; root-cap, 4.1 1 ; 

 vascular system, 272, 304, 

 327. 



Hydrocleis Humboldtii,i65 : 

 endodermis, 122 ; vascular 

 system, 371. 



Hydrocotyle vulgaris, en- 

 dodermis, 121; secretory 

 reservoirs, 499 ; vascular 

 system, 242. 



Hydrophyllese, hairs, 60. 



Hydropterides, 283, 413. 



HymenophyllesE, scleren- 

 chyma, 426; vascular sys- 

 tem, 283, 284, 342. 



Hymenophyllum, hair struc- 

 tures, 64; vascular sys- 

 tem, 283, 363. 



Hyospathe, 266. 



Hypericum, secretory re- 

 servoirs, 202, 208, 209 ; 

 vascular system, 243. 



Hypericum balearicum, 209. 



Hypericum calycinum, 209. 



Hypericum canariense, 209. 



Hypericum hircinum, 209. 



Hypericum perforatum, oil- 

 cavities, 208. 



Hypericum quadrangulum, 

 243. 



Hypochseris radicata, 420. 



Hypocotyledonary stem, 

 236. 



Hypoderma, 225, 404. 



Hypodermal tissue, 225. 



Hypotena, 425. 



Hypolepis, petiole, 405 ; vas- 

 cular system, 284. 



Hypoxideae, 10. 



Hysterogenetic spaces, 200. 



Iberis, 415. 



Iberis amara, vascular bun- 

 dles, 237 (Figs. 92, 93), 

 308. 



Idioblast, 3. 



Ilex, 70, 116, 535: cuticle, 

 76 ; ligneous bundle, 49s ; 

 parenchyma, 411; peri- 

 derm, 558 ; pith, 403 ; sto- 

 mata, 49 ; vascular sys- 

 tem, 322. 



Ilex Aquifolium, 213, 411, 

 470: cuticle, 75; epider- 

 mis, 77, 78 ; ligneous bun- 

 dle, 495 ; sclerenchyma, 

 425; section of leaf, 78 

 (Fig. 26). 



Ilex ovata, 411. 



Impatiens, 67 : crystals,i43; 

 medullary rays, 492 ; ra- 

 phides, 143 ; vascular sys- 

 tem, 236. 



Impatiens Balsamina, vas- 

 cular system, 236, 238. 



Imperatoria Ostruthium, se- 

 cretory reservoirs, 450. 



Initial cell, 39. 



Intercellular spaces, 4, 135, 

 200: arrangement of, 440 ; 

 containing air and water, 

 210; hairs, 220. 



Inula Helenium, 497, 526. 



Inula montana, 446, 447. 



Ipomoea purga, anomalous 

 structure, 607 ; secretions, 

 151. 



Ipomoea purpurea, anoma- 

 lous structure, 607. 



Ipomoea Turpethum, 607. 



Iriartea, 233 : sclerenchyma, 

 420 ; vascular system, 361, 

 362. 



Iriartea exorrhiza, 361. 



Iriartea praemorsa, 361. 



Iridese, 10: leaf-structure, 

 409; sclerenchyma, 419. 



Iris, crystals,' 141, 142; 

 cuticle, 81 ; secretions, 

 138; stomata, 35, 37, 38, 

 39, 47; vascular system, 



339)357- 



Iris germanica, vascular sys- 

 tem, 339, 387. 



Iris Monnieri, 357. 



Iris Pseudacorus, air-spaces, 

 213, 216. 



Isoc-tes, 15, 54; air-spaces, 

 213, 217 ; axile bundle in, 

 280 ; parenchyma, 407, 

 413; secondary thicken- 

 ing, 623, 624; stomata, 

 50; tracheides, 226; vas- 

 cular system, 278, 301, 



335, 337, 365. 

 Isoetes Durieui, 338, 407, 



624. 

 Isoetes Engelmanni, 338. 

 Isoetes Hystrix, 407, 624. 



T t 



Isoetes lacustris, 54, 624. 



Isonandra, 146. 



Isonandra gutta, secretory 



sacs, 151. 

 Isotoma, laticiferous tubes, 



434- 



Jacquinia, 419. 



Jasminum, 535 : hair struc- 

 tures, 63, 64; ligneous 

 bundle, 495. 



Jasminum fruticans, crys- 

 tals, 529; vascular sys- 

 tem, 237; wax, 82. 



Jasminum officinale, cuticle, 

 76 ; epidermis, 77. 



Jasminum revolutum, 495. 



Jatropha Manihot, 470, 479, 

 481, 482, 502. 



Jatropha napaEifoIia,hairs,6o. 



Jatropha urens, hairs, 60. 



Jochroma coccineum, crys- 

 tals, 143. 



Jochroma Warczewiczii, 

 crystals, 143. 



Jubaea spectabilis, vascular 

 system, 266. 



Juglans, 167, 505 : ligneous 

 bundle, 495 ; medullary 

 rays, 489 ; periderm, 548 ; 

 sieve-tubes, 176; stomata, 

 46. 



Juglans cinerea, 498. 



Juglans regia, 479, 498: 

 crystals, 142, 530; fibres, 

 528 ; lenticels, 564 ; scle- 

 rosis, 540. 



Juncacese, 10 : parenchyma, 

 407, 415 ; sclerenchyma, 

 419. 



Juncagineae, 10. 



J uncus, intercellular spaces, 

 212; pith, 212. 



Juncus bufonius, 419. 



Juncus efFusus, air-spaces, 

 218; parenchyma, 409; 

 stomata, 40. 



Juncus glaucus, 409. 



Juncus lamprocarpus, sto- 

 mata, 40. 



Juncus paniculatus, 419. 



Juniperus, bast (Fig. 211), 

 521; parenchyma, 410; 

 periderm, 551 ; medullary 

 rays, 489 ; resin-canals, 

 443 ; secretory reservoirs, 

 442, 544; sieve-tubes, 

 179; tracheae, 163; tra- 

 cheides (Fig. 209), 404; 

 vascular system, 246, 308, 

 381, 382. 



Juniperus communis, 382, 

 410, 467, 489; bordered 

 pits (Figs. 62, 63), 164; 



