652 



INDEX. 



Rhododendron maximum, 

 medullary rays, 489. 



Rhus, resin passages, 203, 

 452; tracheidesand fibres, 

 485. 



Rhus aromatica, 452. 



Rhus Coriaria, 452. 



Rhus Cotinus, 452, 484, 493. 



Rhus elegans, 452. 



Rhus glauca, 452. 



Rhus semialata, ^52. 



Rhus suaveolens, 452. 



Rhus Toxicodendron, 452, 

 4S4. 



Rhus typhina, crystals, 142, 

 45-, 470. 



Rhus viilosa, 452. 



Rhus viminalis, 452. 



Rhus virens, 452. 



Rhynchosia phaseoloides, 

 anomalous wood, 589. 



Rhynchospora, 32. 



Rhynchospora alba, 419. 



Ribes, bast-fibres, 526; 

 crystals, 530; glands, 94 ; 

 hairs, 65 ; ligneous bun- 

 dle, 495 ; periderm, 559 ; 

 phelloderm,552; prickles, 

 66 ; tracheidesand fibres, 

 483. 



Ribes nigrum, cortex, 552 

 (Fig. 220) ; crystals, 142 ; 

 glandular hairs, 90, 95 ; 

 hair structures, 64. 



Ribes rubrum, 479: vascu- 

 lar system, 239. 



Ribes triste, water-pore, 51. 



Richardia, laticiferous tubes, 

 436; vascular system, 304, 



315, 327. 



F ichardia sethiopica, vas- 

 cular system, 268, 269 ; 

 water-pores, 51. 



Richardia africana, 346. 



Ricinus, glands, 96 ; struc- 

 ture of stem, 455 (Fig. 

 194) ; vascular bundle, 

 333 (Figs. 154, 155). 



Ricinus communis, crystals, 

 140 ; vascular system, 236, 

 353 ; wax, 85. 



Rings, annual, 501. 



Rivma aurantiaca, 590. 



Rivina brasiliensis, 590. 



Robinia, 497 : annual rings, 

 476 ; lenticels, 562 ; lig- 

 neous bundle, 495 ; scle- 

 renchyma, 426 ; thyloses, 



171. 

 Robinia Pseudacacia, 484, 

 496 : crystals, 142 ; fibres, 

 133; medullary rays, 489 ; 

 peridenn, 548, 558; tan- 

 nin-sacs, 153; w ood, 511. 



Robinia viccosa, glands, 90. 



Rochea coccinea, vascular 

 bundles, 379 (Figs. 181, 

 182) ; water-pore, 53 

 (Fig. 20). 



Rochea falcata, hair struc- 

 tures, 65. 



Roemeria, 187 : laticiferous 

 tubes, 435. 



Root-cap, 9. 



Root-hairs, 55. 



Root-hairs, absence of, 55. 



Roots, vascular system of, 



315- 



Rosa, cortex, 404 ; glands, 

 90 ; ligneous bundle, 495 ; 

 pith, 403 ; prickles, 66. 



Rosa canina, epidermis, 77 ; 

 lenticels, 565 ; ligneous 

 bundle, 495. 



Rosa damascena, 48. 



Rosmarinus, vascular sys- 

 tem, 322. 



Rosmarinus ofiicinalis, hairs, 

 62 ; parenchyma, 411 ; 

 sclerenchyma, 418, 497. 



Rubia, 171: root, 517; se- 

 cretory sacs, 147; vascu- 

 lar system, 243, 296, 308- 



Rubia tinctorum, water- 

 pore, 53. 



Rubiaceae, 457 : vascular 

 system, 296. 



Rubus, 66, 70: pith, 403; 

 vascular system, 309. 



Rubus CKsius, prickles, 66. 



Rubus Hofmeisteri, prickles, 

 66. 



Rubus Idaeus, 484 : peri- 

 derm, 552; prickles, 66. 



Rubus odoratus, 560, 



Rudbeckia speciosa, water- 

 pore, 52. 



Ruellia tormosa, cystoliths, 

 105. 



Ruellia livida, 105. 



Ruellia maculata, vascular 

 system, 243. 



Rumex, colienchyma, 119, 

 120; glandular hairs, 90, 

 91. 



Rumex alismifolius, 458. 



Rumex Lunaria, 458, 499. 



Rumex obtusifolius, 71, 



Rumex patientia, 71. 



Ruppia, vascular system, 

 277. 



Ruscus, vascular system, 

 301. 



Ruscus aculeatus, 77, 102. 



Russelia juncea, vascular 

 system, 243, 308. 



Ruta graveolens, oil-cavities, 

 208 ; stomata, 39. 



Rutaceae, oil-cavities, 202, 

 207. 



Saccharum, vascular system, 

 311 ; wax, 87. 



Saccharum officinarum, scle- 

 renchyma, 422 ; wax rods 

 on stem, 83, 84 (Fig. 28). 



Saccolabium Blumei, 229. 



Saccoloma, 289. 



Saccoloma adiantoides, vas- 

 cular system, 289, 290 

 (Fig. 137). 



Sacs, 5, 135: containing 

 mucilage, 143 ; contain- 

 ing crystals, 137, 529; 

 containing gum-resins, 

 145 ; contents of, 152 ; 

 membrane of, 152; tan- 

 nin, 153. 



Sagittaria, 10 : air-spaces, 

 217, 218, 219 ; intercellu- 

 lar spaces, 211 (Fig. 87); 

 root-development, 397 ; 

 stomata, 49, 50. 



Sagittaria indica, 218. 



Sagittaria lancifolia, 218. 



Sagittaria sagittifolia, 165, 

 218: stomata, 49, 50. 



Salicornia, 31 : parenchyma, 

 409 ; stomata, 45, 48 ; 

 tracheides, 226 ; vascular 

 system, 256, 297, 304. 



Salicornia Emerici, 226. 



Salicornia herbacea, 226, 

 409, 591, 



Salicornia patula, 226. 



Salicornia sarmentosa, 226. 



Salisburia, sieve-tubes, 179. 



Salix,i2,536: cork, 1 10, i ti, 

 112, 550; cortex, 404 ; 

 crystals, 530 ; fibres, 527 ; 

 glands, 90, 96 ; lenticels, 

 564 ; medullary rays, 493; 

 mucilage, 74 ; periderm, 

 548 ; secondary thicken- 

 ing, 479; tracheides and 

 fibres, 483. 



Salix acutifolia, 479, 498. 



Salix alba, mucilage, 74, 

 112, 472. 



Salix amygdalina, mucilage, 



74. 555- 

 Salix aurita, crystals, 140, 



493- 

 Salix bicolor, 493. 

 Salix Caprea, 493. 

 Salix cinerea, crystals, 142, 



4S4. 

 Salix daphnoides, epidermis, 



77- 

 Salix fragilis, 112, 537, 564. 

 Salix hippophaefolia, 479, 



498. 



