INDEX. 



973 



RotiferEe, resistance to cold, i. 542. 



— symbiosis mtli Liverworts, i. 225. 

 Rotting, and Fungi, i. 508. 

 Rousseau, lectures ou botany, i. 6. 

 Royal Fern. See Osyrmnda regalis. 

 Rubla, stipules, i. 637. 

 Rubiftceae, ii. 763. 



Rubus, indumenta of hybrids, ii. 564. 



— innumerable hybrids, ii. 585. 



— many forms of, ii. 900. 



— nectary, ii. 174. 



— prickles, i. 676. 



— weaving-stem, i. 672. 



Rubus bifrons, rooting branches, i. 769. 



Rubus Ohamcemorus, water-receptacleB, i. 

 239. 



Rubus fruticosus, protective funotion of air- 

 containing hairs, i. 314. 



Rubus Idseus, aggregate fruit, ii. 436. 



autogamy, ii. 390. 



flower, ii. 78. 



pbyllotasis, i. 400. 



radical shoots, ii. 27. 



recurrent opening, ii. 213. 



two-coloured leaves and habitat, i. 293. 



Rubus squarrosus, branches, i. 677. 



Rudbeckia f ulgens, colour-contrast in capitu- 

 lum, ii. 191. 



Rumex, anthocyanin, 1. 484. 



— -dichogamy, ii. 135. 



— geitonogamy, ii. 328. 



— venation, i. 630. 



Rumex Acetosella, radical buds, ii. 28. 

 Rumex alpinus, distribution of sexes, ii. 298 



imperfect flower, ii. 295. 



pollen dispersion, ii. 143. 



protogyny, ii. 312. 



Rumex nemorosus and R. obtusif olius, dicho- 

 gamy and hybridization, ii. 315. 



distribution of sexes, ii. 298. 



imperfect flowers, ii. 295. 



Rumex nepalensis, hooked fruit, ii. 873. 

 Rumex Patientia, probable hybrid, ii, 592. 

 Rumex scutatus, autholysis, ii. 83. 



pollen dispersion, ii. 143. 



Rumex tuberosus, roots, i. 760. 

 Runner, adventitious roots, i. 751. 



— dimensions of, ii. 797. 



— nature of, i. 663. 



— production of offshoots by, ii. 802. 

 Ruppia, root origin, i. 766. 

 Ruscus, buds on cladodes, ii. 37. 

 Ruscus aculeatus, cladodes, i. 332. 

 shoot, i. 333. 



spinosity, i. 434. 



Ruscus Hypoglossum, cladodes, i. 333. 

 Rushes, in Alps, anthocyanin, i. 522. 

 Russelia, scarlet flowers, ii. 196. 

 Russia, Southern, lowlands of, hairiness of 



plants, i. 318. 

 Russula, laticiferous, i. 491 ; ii. 689. 

 Rust. See Uredinece. 

 Rust-fungus, teleutospores, ii. 24. 

 Ruta, capsule, ii. 431. 



— cross-fertilization, ii. 306. 



— pollen-grain, ii. 100. 



Ruta graveolens, flower, ii. 306. 



scent, ii. 202. 



seed and embryo, ii. 422. 



RutaccEe, honey protection in, ii. 241. 



— of steppes, waxy bloom of leaves, i. 312. 



S. 



Saas-F^e, and Uromyces Pisi, ii. 525. 

 Saccharomyces, development and ferment 



action, i. 506. 

 Saccharomyces cerevisise, ii, 681- 



life-cycle, ii. 683. 



Saccharomyces ellipsoideus, fermentative 



axjtivity. ii. 684. 

 Saccharum officinarum, mechanical tissue 



arrangement, i. 731. 

 Sachs's table of Thallophyte classification, 



ii. 606. 

 Sagina Linnsei, nectaries, ii. 176. 



Sagina saxatilis, autogamy, ii. 338, 339. 

 Sagittaria, monoecious, ii. 297. 



— protective isolation by water, ii. 234. 

 Sagittaria sagittlf olia, leaf and habitat, ii. 502. 

 Sainfoin. See OnobrycJiis. 



Salicineae, porogamio fertilization, ii. 413. 

 Saliva, action on granulose and cellulose, i. 



460. 

 Salis, and galls of Nematusgallarum, ii. 537. 



— colour of anthers, ii. 183, 



— dates of flowering of hybrids and their 



parents, ii. 574. 



— deciduous bud-scales, i. 626. 



— gaUs. ii. 531, 533, 546, 552. 



— habitat in relation to water-collecting 



habit, i. 240. 



— hybrids, ii. 583. 



— insect pollination, ii, 583. 



— mechanical tissue arrangement, i. 729. 



— phyllotaxis, i, 399. 



— pollarding, ii. 37, 



— pollen -grains, ii. 99. 



— porogamio fertilization, ii, 413, 



— protogyny, ii. 313. 



— roots, i, 752. 



— ternary hybrids, ii. 560. 



— water-pore of nectary, ii. 172. 



Salix alba, and bud-galls produced by mites, 

 ii. 547, 



Salix amygdalina, S. purpurea, S. pruinosa, 

 protective layer of wax on leaves, i. 291, 



Salix aurita, normal and sucker leaves, ii. 516. 



Salix caprea, foliaceous ovule, ii. 83. 



hairs, ii. 565. 



phyllotaxis, i. 408. 



scent, ii. 202. 



Salix daphnoides, scent, ii. 202. 



Salix fragilis, inflorescences, ii. 299. 



water-absorption, from atmosphere, i. 238. 



Salix grandifolia, and galls of Cecidomyia 

 rosaria, ii. 546. 



and galls of Hormomyia Caprese, ii. 538. 



effect of branch mutilation, ii. 516. 



Saltx incana, gall of Nematus pedunculi, ii, 

 531. 



SaUx Myrsinites, plumed seeds, ii. 857. 



Salix polaris, seeds escaping, ii, 424. 



Salix pruinosa, wax-like bloom, i. 462 ; ii. 237. 



Salix purpurea, and galls of Cecidomyia 

 rosaria, ii. 547. 



and galls of Nematus vesicator, ii. 533. 



dichogamy and hybridization, ii. 314. 



experiment with partially stripped 



branch, i. 480. 



Salix repens, staminal change of colour, ii. 191, 



Salix reticulata, leaf, section, i. 301. 



Salix rubra, hybrid, hairs of, ii. 565. 



Salix viminalis, dichogamy and hybridiza- 

 tion, ii. 314. 



hairs, ii. 565. 



Salsify. See Tragopogon. 



Salsola, dichogamy, ii. 135. 



Salt, incrustations, of leaves and stems, mode 

 of retention, i. 237. 



— in sap of succulents, i. 329. 

 Saltness of water, and blueness, i. 389. 

 Salvia, direction of flowers, ii. 225. 



— hairiness, i. 317. 



— hybrids, ii. 585. 



— pericarp mucilage, i. 615. 



Salvia argentea, absorption-cells of hairs, i. 

 227. 



Salvia betonicifolia, hybrid, ii. 585. 



Salvia cardinalis, red flower, ii. 196. 



Salvia cleistogama, flowers, ii. 394. 



Salvia glutinosa, flower and poUen trans- 

 ference, ii. 262. 



pollen-grains, ii. 98. 



rocking connective, ii. 262. 



sticky calyx, ii. 870. 



Salvia ofBcinalis, hammer-apparatus, ii. 263. 



Salvia pratensis, hammer-apparatus, ii. 263. 



Salvia splendens, coloured bracts, ii. 183. 



Salvia sylvestris, hybrid, peculiarity of foli- 

 age, ii- 576. 



Salvia Verbenaca, the Wild Clary, petiole 

 section, i, 22. 



Salvia verticillata, seed-dispersal, ii. 841. 

 Salvia viridis, alluring bracts, ii, 188. 

 Salvinia, protection of sporangia, ii. 13. 



— sexual reproductive organs, ii. 69. 



— swimming habit, i. 669. 



Salvinia natans, submerged leaves, i, 766. 

 Salvinia oflBcinalis, stamen, ii, 87. 

 Salviniaceaa, description, ii. 710. 

 Samara, nature of, ii. 430. 

 SambucuB Ebulus, scent, ii. 201. 

 Sambucus nigra, dates of flowering, i. 519. 



drupe, ii. 428. 



evergreen at Poti, i. 358, 



reserve-buds, ii. 32. 



scent, ii. 202. 



Sambucus racemosa, anthocyanin, i. 484. 



geitonogamy, ii, 326, 



scent, ii. 200. 



Sand, and preservation of fossil plants, ii. 612. 

 Sanguinaria Canadensis, latex, i. 470. 



stamen, ii. 87. 



Sanguisorba alpina, pollen discharge, ii. 145. 

 Sanicula Europeea, winter protection, i, 550. 

 SantalaceEB, ii. 754. 



— many parasitic, i. 176, 



Sap, ascent of, theoretical considerations, i. 

 270. 



— exudation in roses, maples, birches, rela- 



tive volume, i. 272. 



— raw, or crude, factors determining desti- 



nation, i. 274. 

 Saponaria ocymoides, distribution of sexes, 

 ii. 300. 



elevation and coloration, ii. 511. 



Saponaria Vaccaria, duration of flowering, 



ii. 213. 

 Saponaria viscosa, carnivorous in minor 



degree, i. 156. 

 Saponin, in roots of Saponaria, i. 763. 

 Sapotacese, ii. 768. 

 Saprolegnia, ii. 671. 



— offshoots, ii. 802. 



Saprolegnia ferax, parasitic on salmon, ii. 671. 



— parthenogenesis in, ii. 464. 



— selection of host, i. 171. 

 Saprolegniaceje, asexual and sexual repro- 

 duction, ii. 480. 



— characters, ii. 670. 



— on floating dead bodies, i. 105. 

 Saprophytes, absorption of carbon dioxide, 



i. 63. 



— absorption roots, i. 115. 



— fastidiousness of, i. 118. 



— favourable conditions for, i. 102. 



— fossil remains, ii. 614. 



— green, absorption of carbon, i. 103. 



— in humus of meadows, i. 112. 



— in water, i. 104. 



— non-green, absorption of organic com- 



pounds, i. 103. 



— not sharply marked off from non-sapro- 



phytes, i. 104. 



— nutrition, i. 466. 



— relation to decaying bodies, i. 99. 



— substratum, ii. 499. 



Saprophytic Bacteria, effect on substratum, 



ii. 623. 

 Saprophytism, means of determining, i. 100. 

 Sarcanthus rostratus, aerial roots, i. 753. 



strap-shaped adherent roots, i. 107. 



Rarcina ventriculi, ii. 624. 



Sarcophaga camaria and flower-colour, ii. 



197. 

 Sarcophytaceee, ii. 762. 

 Sarcophyte sanguinea, Cape, i. 195. 



description, i. 196. 



flowering axis, flowers, &c., i. 198. 



Sargasso Sea, area, &c., ii. 665. 

 Sargassum, host for other Algae, i. 160. 

 Sargassum hacciferum, in Atlantic, ii. 665. 

 Sarothamnus, explosive flowers, ii. 267. 

 Sarothamnus scoparius. See Spartium sco- 



paHvm. 

 Sarracenia, heteromorphic leaves, i. 130. 



— storage of pollen, ii. 94. 



Sarracenia Drummondii, honey, &c., i. 130. 

 pitchers and leaves, i. 130. 



