640 



IX DE X. 



\ 



Hakea nitida, 130. 



Hakea saligna, 67, 130: 

 siomata, 35. 39, 40. 



Hakea suaveolens. 495 : ge- 

 latinous layer, 482. 



Halimodendron, scleren- 

 chyma, 426. 



Halimu?, 593. 



Haloxylon Ammodendron, 



591. 593- 

 Hamamelis, medullary rays, 



489 ; phellodenn, 549. 



Hamamelis virginiana, crys- 

 tals, 142; thickening, 465; 

 tracheides, 481. 



Hamelia chrysaiitha, 296. 



Hancornia, latex, 1S5. 



Haplolophium, 575, 589. 



Hartwegia, aerial roots, 231. 



Haworthia, 148. 



Hcchtia, hair structures, 

 64; parenchyma, 411 ; 

 stomata, 37. 



Hechtiaplanifolia, 64. 



Hechtia stenopetala, 64. 



Hedera, cortex, 404 ; lig- 

 neous bundle, 495 ; oil- 

 passages, 450 ; pits, 481 ; 

 stomata, 46. 



Hedera Helix, 479, 484, 

 496, 505 : resin-passages, 

 203 (p-ig. 85), 450; vas- 

 cular system, 354. 



Hedera Regneriana, lenti- 

 cels, 564. 



Hedychium, thyloses, 171; 

 vascular system, 267, 277. 



Hedysarum coronarium, 

 vascular system, 354. 



Heleniumautumnale, water- 

 pores, 51. 



Heleocharis palustris, air- 

 spaces, 216, 217. 



Helianthus, hairs, 61 ; par- 

 enchyma, 412 ; secretion, 

 106. 



Helianthus annuus, 10 : 

 glands, 94 ; oil-passages, 

 203,446,526; sheath, 415. 



Helianthus grosseserratus, 

 103. 



Helianthus macrophyllus, 

 106. 



Helianthus trachelifolius, 

 secretion, 102, 103, 106. 



Helianthus tuberosus, oil- 

 passages, 106, 447. 



Heliconia, tannin-sacs, 437. 



Heliconia Bihai, 437. 



Heliconia farinosa, scleren- 

 chyma, 128; stomata, 39, 

 40 ; vascular system, 302 ; 

 wax, 83, 87. 



Heliconia pulverulenta, 437. 



Heliconia speciosa, 437. 



Heliopsis lac vis, secretion, 

 J03, 106. 



Helleborus, cuticle, 75 ; sto- 

 mata, 36. 



Helleborus fcietidu'^, 70, 71 ; 

 cuticle, 76 ; stomata, 37. 



Helleborus niger, 71 ; sto- 

 mata, 36, 75 ; water- 

 pores, 51. 



Helleborus viridis, stomata, 



75. 



Helosidea?, stone-elements, 

 127; vascular system, 254. 



Helosis, point of attach- 

 ment, 384. 



Hemerocallis, 320. 



Hemerocallis fulva, 409. 



Hemitelia capensis, hair- 

 structures, 64 ; vascular 

 system, 291. 



Heracleum, secretory re- 

 servoirs, 450 ; vascular 

 system, 309. 



Heracleum flavescens, 



water-pore, 52. 



Heracleum Sphondylium, 



450- 



Heritiera Fomes, anomalous 

 growth, 527. 



Herminiera, 487 ; crystals, 

 141. 



Herminiera Elaphroxylon, 

 470, 499, 500 : crystals, 

 140; secretions, 139. 



Herminium Monorchis, sto- 

 mata, 46. 



Hertia crassifolia, vascular 

 system, 239. 



Heterocentron, cortical 

 bundles, 260; periderm, 



552. 

 Heterocentron subtripliner- 



vium, 260. 

 Heteropsis, 268; internal 



hairs, 222 ; laticiferous 



tubes, 436. 

 Heteropsis ovata, 361. 

 Heuchera, water-pore, 51. 

 Hevea elastica, latex, 185, 



186. 

 Hibiscus Rosa sinensis, 479, 



497- 

 Hibiscus syriacus, 537. 

 Hieracium, 458: hairstiuc- 



tures, 56, 65 ; laticiferous 



tubes, 433; sieve-tubes, 



231. 

 Hieracium aurantiacum, 



hairs, 56. 

 Hieracium denticulatum, 



water-pore, 52. 

 Hieracium piliferum, hair?, 



59 (Fig. 21). 



Hieracium Pilosella, water- 

 pore, 52 ; hairs, 61. 



Hieracium sabaudum, 



water-pore, 52. 



Hieracium vulgatum, 167. 



Hippocrateaceae, 587. 



HippomaneI\Iancinella,439. 



Hippophac, 480. 



Hippophae rhamnoides, 

 bordered pits, 164. 



Hippuris, air-spaces, 213, 

 217 ; cortex, 405 ; endo- 

 dermis, 121; glands, 91; 

 hair structures, 64 ; vas- 

 cular bundles, 278, 340; 

 vascular system, 340, 395 ; 

 water-pores, 51, 53. 



Hippuris vulgaris, growing 

 point, 8 (Fig. i). 



Hirtella silicea, 510. 



Hohenbergia strobilacea, 

 411. 



Holcus mollis, stomata, 50. 



Homalomena, aerial roots, 

 230 ; secretory reservoire, 

 445 ; vascular system, 

 268, 



Homalomena casrulescens, 

 320. 



Homalomena Porteanum, 



445- 

 Homalomena rubescens, 



445- 

 Homalomena Wendlandii, 



445- 



Hordeum, 10, 412: vas- 

 cular system, 359. 



Hordeum murinum, sto- 

 mata, 50. 



Hordeum vulgare, apex of 

 root, 10. 



Hottonia, 25 : air-spaces, 

 213; cortex, 405; endo- 

 dermis, 415; stomata, 46, 

 49; vascular system, 277, 

 340. 



Hottonia palustris, 53. 



Houstonia coccinea, 296. 



Hoya, 199, 486. 



Hoya carnosa, aerial roots, 

 230 ; crystals. 140; endo- 

 dermis, 125; epidermis, 

 77, 81 ; laticiferous tubes, 

 194 ; stone elements, 127 ; 

 wax, 82. 



Humulus, cystoliths, 105 ; 

 glandular scales, 95 (Fig. 

 40); secretion, 98, 103. 



Humulus Lupulus, glandu- 

 lar hairs, 90; hair struc- 

 tures, 61, 64, 90; latici- 

 ferous tubes, 439; vas- 

 cular system, 244, 297, 

 298, 392. 



