8i6 



INDEX. 



Refractive index, 774 

 Regular flower, 393 

 Repand, 356 

 Repens, 457 

 Reptans, 457 

 Reseda, 457. 554 

 Resedaceae, 554 

 Resene resins, 237 

 Reserve layers, 425 

 Resin, 236. 255 



balsamic, 225 



chaia, 621 



fossil, 237 



micro-chemistry of, 231 



origin of, 238 



piney, 621 



soft. 587 

 Resinol resins, 237 

 Resinolic acid resins, 237 

 Resins, origin of, 238 

 Respiration, 350 

 Reticulate, 354. 457 

 Reticulatus-a-um, 457 

 Retuse. 355 

 Rhamnetin, 180 

 Rhamnose, 154, 562 

 Rhamnus, 457. 604 



bark of, 342 



fruit, 422 



wood of, 344 

 Rhapontic, 457 

 Rhaponticus-a-um, 457 

 Rhatany, 449 

 Rheedia, 619 

 Rhein, 170 

 Rheum, 457. 521 



species, 522 

 Rhexia, 634 

 Rhipsalis, 627 

 Rhizogenous layer, 312 

 Rhizome. 325 

 Rhizophora, 304, 630 

 R-hizophoraceae, 630 

 Rhodeose, 169 

 Rhododendron, 457, 646 



glandular hairs in, 230 



hairs in, 282 

 Rhodophyceae, 17, 31 

 Rhodymenia, 34 

 Rhaeadales, 546, 554 

 Rhubarb, 457, 522 



garden, 522 



South China, 522 

 Rhus, 457, 595. 596, 597. 598 



ferment in, 245 



hairs of, 280, 284 



poisonous, 597 



species of, 597 



tannin in, 206 

 Rhynchanthera, 634 

 Ribes, 457. 558 



fruit, 418 

 Riccia, 82 

 Rice, 467 



protein in, 199 



Rice, starch in, 148 

 Ricin, 19s. 196, 59©. 61 1 

 Ricinus, 196, 457, 59i 



aleurone grains of, I94, 

 428 



ferment in, 244 



fruit, 410 



protein in, 199 



seed, 426 

 Ringent, 388 

 Riuno-kiku, 726 

 River-weed, 455 



family, 556 

 Rivinia, 528 

 Robin. 198 



Robinia, 457, 574. 576 

 Robinin, 169 

 Robustus-a-nm, 457 

 Roccella, 74 

 Rocket, 447 

 Rockrose, 447 

 Rockweeds, 28 

 Roman chamomile, 713 

 Root, 299 



abnormal structure of, 319 



absorption, 251 



adventitious, 301 



aerial, 306 



assimilation, 306 



belladonna, cross- section 

 of. 318 



branches, 319 



breathing, 306 



cap, 299, 301 



climber, 324 



contraction of, 319 



hairs, 299, 301, 309 



inner structure of, 309 



lateral, 301, 312 



modified, 306 



outer morphology of, 299 



Phytolacca, cross-section 

 of, 318 



pressure, 252 



primary, 301 



structure of dicotyle- 

 dons, 345 



primordia, 301 



secondary, 301 



stele, 313 



stock, 325 



tap, 301 



true. 299 



tubercle, 306 



tuberous, 305, 327 

 Roripa, 553 

 Rosa, 457, 564 

 Rosaceae, 560 

 Resales, 556 

 Rose, 457, 564 



apple, 632 



bay, 457. 647 



camphor, 564 



family, 560 



geranium, 579 



Rose, hip, 405? 



oil, 564 



petals, 564 



tea, 629 



wood, 544 

 Rosemary, 457 

 Roseus-a-um, 457 

 Rosin, weed, 459, 723 

 Rosmarinus, 457, 676 

 Rostratus-a-um, 458 

 Rotate, 388 

 Rottlerin, 180, 592 

 Rotundifolius-a-um, 458 

 Rubber, India, 241, 592 



trees, 241 

 Ruberithrinic. 169 

 Ruber-ra-rum, 458 

 Rubia, 702 

 Rubiaceae, 697 

 Rubiales, 697 

 Rubus, 458, 563 



cork in, 293 



fruit, 416 

 Rudbeckia, 723 

 Rue, 458 



anemone. 535 



family, 581 



garden, 585 



meadow, 460 

 Ruellia. 694 

 Rugose. 354 

 Rugosus-a-um, 458 

 Rum, bay, 632 

 Rumex, 458, 5?3 

 Runner, 325 

 Rush, 458 



bog. 449 



family. 493 



matting, 493 



scouring, 96 



soft, 493 



spike, 444 



wood, 493 

 Rust, wheat, 69 

 Ruta, 458 

 Rutaceae, 581 

 Rutin, 170, 585 

 Rye, 458, 467 



lecithin in, 214 



protein in, 199 



starch in, 148 



sugar in, 157 



Sabadilla, 458 

 Sabal, 458. 473 

 Sabbatia, 664 

 Sabina, 115, 458 

 Sable tetraedrique, 188 

 Sabodilla tree, 659 

 Sac. pollen. 120 

 Saccate. 388 

 Saccharomyces. 47 

 Saccharomycetes, 47 

 Saccharose, 154. I5S 

 Saccharum, 458, 467 



