INDEX. 



973 



Rotifeiw, resistance t^ coUl, i. 542. 



— s>iiibii.>sis with Liverworts, i. 225. 

 Rotting, and Fiiiigi, i. 508. 

 Rousseau, lectures on botany, i. 6. 

 Royal Fern. See ö^munda rtihilis. 

 Kubia, stipules, i. 637. 

 Rubiace», ü. 763. 



Rubus, indumenta of hybrids, ii. 5G4. 



— innumerable hybrids, ü. 585. 



— many forms of, ii. 900. 



— nectary, ii. 174. 



— prickles, i. 676. 



— wenving-stem, i. 672. 



Rubus bifrous. rooting branches, i. 769. 



Kubns Cbamiemorus, water-receptacles, i. 

 239. 



RubuH fruticosus, protective function of air- 

 containing hairs, i. 314. 



Rubus Idieus, aggregate fruit, ii. 436. 



autogamy, ii. 390. 



flower, ii. 78. 



phyllotaxis, i. 400. 



radical shoots, ii. 27. 



recurrent opening, ii. 213. 



two-coloured leaves and habitat, i. 293. 



Rubus squarrosus, branches, i. 677. 



Rudbeekia f uljiens, colour-contrast in capitu- 

 lum. ii. 191. 



Rumex, antbocyanin, L 484. 



— dichogamy, ii. 135. 



— geitonogamy. ii. 32S. 



— venation, i. 630. 



Rnmex Acetosella. radical buds, ii. 28. 

 Rumex alpinus. distribution of sexes, ii. 298. 



imperfect flower, ii. 295. 



I)ollen dispersion, ii. 143. 



protogjTiy, ii. 312. 



Rumex nemorosus and R. obtusifolius, dicho- 

 gamy and hybridization, ü. 315. 



distribution of seses, ii. 298. 



imperfect flowers, ii. 295. 



Rumex nepalensis, hooked fruit, ii. 873. 

 Rumex Patientia, probable hybrid, ii. 592. 

 Rumex scutatus, antholysis, ii. 83. 

 " — pollen dispersion, ii. 143. 

 Rimiex tuberosus, roots, i. 760. 

 Runner, adventitious roots, i. 751. 



— dimensions of, ii. 797. 



— nature of, i. 663. 



— production of offshoots by, ii. 802. 

 Rnppia, root origin, i. 766. 

 Ruscus, buds on cladodes, U. 37. 

 Ruscus aculeatus, cladodes, i. 332. 

 shoot, i. 333. 



spinosily, i. 434. 



Ruscus Hyp'^glossura, cladodes, i. 333. 

 Rushes, in Alps, antbocyanin, i. 522. 

 Rtissclia, scarlet flowers, iL 196. 

 Russia, Southern, lowlands of, hairiness of 



plant«, i. 318. 

 RusBula, laticiferous. i. 491; iL 689. 

 Rust. See Uredinea:. 

 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. 



RutaoesB. honey protection in. ii. 241. 



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



8aa»-Fte, and T7romyoes Piei, ii. 525. 

 Saccharomyoes, development and ferment 



action, L 506. 

 Saccharomyces cerevisia;, ii, 681- 



life-cycle, ii. 683. 



Haocharomyces ellipsoideuA, fermentative 



activity, ii. 684. 

 Saccbanim offlcinarum, mechanical tissue 



arrangement, i. 731. 

 Sachs's table of Thallophyte classification, 



ii. 606. 

 Sagina Liniuei, nectaries, U. 176. 



Sagina saxatilis, auto^'aniy, ii. 338, 339. 



Sagittaria. moucucious, ii. 297. 



— protective isolation by water, ii. 234. 

 SaKittaria Riigittifolia, leaf and habitat, ii, 502. 

 Sainfoin. See Onobrtjchti. 



Siilicineie, pomgauiic fertilization, ii. 413. 

 Saliva, action ou granulöse and cellulose, i. 



460. 

 Salix, and galls of Neniatnsgallamni, ii. 537. 



— colour of authors, ii. 183. 



— dates of flowering of hybrids and their 



parents, ii. 574. 



— deciduous bud-scales, i. 626. 



— galls, 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. 



— poroganiic 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, 

 Ü. 547. 



Salix amygdalina, S. purpurea, S. pruinosa, 

 protective layer of wax on leaves, i. 291. 



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



SalL\ caprea, foliaceous ovule, ii. 83. 



hairs, ii. 565. 



phyllotaxis. i. 408. 



scent, ii. 202. 



Salix daphuoides, scent, ii. 202. 



Salix fragilis, inflorescences, ii. 299. 



water-absn rption, 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. 



Salix incaua, gall of Nematus pedunculi, ii, 

 531. 



Salix 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 anil hybridization, ii. 314. 



experiment with partially stripped 



branch, i. 480. 



Salixrepens,8tan)inalchangeof 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 Tmijopoyon. 



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 caniinalis. red flower, ii. 196. 



Salvia clcLStogama, flowers, ii. 394. 



Salvia glutinosa, flower and pollen trans- 

 ft-rt-nce, ii. 262. 



pollen -grains, ii. 98. 



rocking connective, ii. 262. 



sticky calyx, ii. 870. 



Salvia officinalis, haoimer-ai>paratus, ii. 263. 



Salvia pratensis, hammer-apparatus, ii. 2C3. 



Salvia splendens, coloured bracts, ii. 183. 



Salvia Bylvostris, hybrid, peculiarity of foli- 

 age, ii. 576. 



Salvia Verbenac». the Wild Clarj-, petiole 

 section, i. 22. 



Salvia vorticitlatn, soed-dispersal, ii. 841. 

 Salvia viridis, alluring bract«, ii. 188. 

 Sftlvinia, protection of sporangia, ii. 13. 



— sexual reproductive organs, ii. 69. 



— swimming habit, i. 669. 



Salvinia natans. Bubmerged leaves, i. 766. 

 Salvinia officinalis, stamen, ii. 87- 

 Salviniaccw. description, ii. 710. 

 Samara, nature of. ii. 430. 

 Sainbucus Ebulus, scont, 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, antbocyanin, 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 Europa^a, i^-inter protection, i. 550. 

 Sautalacere, 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. 



Sapouaria Vaccaria, duration of flowering, 



ii. 213. 

 Saponaria viscosa, carnivorous in minor 



degree, i. 156. 

 Saponin, in roots of Saponaria, i. 763. 

 Sapotaceie, ii. 768. 

 Saprolegnia, ii. 671. 



— offshoots, ii. 802. 



Saprolegnia ferax. parasitic on salmon, ii. 671. 



— parthenogenesis in, ii. 464. 



— selection of host, i. 171. 

 Saprolegniacete, 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. 



— favomrable conditions for. i. 102. 



— fossil remains, ii. 614. 



— green, absor])tion 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. 



Sapropliytic Bacteria, effect on substratum, 

 ii. 623. 



Sapropbytism, means of determining, i. 100. 



Sarcanthua rostratus. aerial roots, i. 753. 



strap-shaped adherent roots, i. 107. 



Sarcina ventriculi, ii. 624. 



Sarcopliaga camaria and flower-colour, ii. 

 197. 



Sarcophytacea), ii, 762. 



Sarcopbytc sanguinea. Cape, i, 195. 



description, i. 196. 



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



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



Sargassum, host for other Algaj, i. 160. 



Sargasfium bacciferum, in Atlantic, ii. 666. 



Sarothaninus, explosive flowers, ii. 367. 



Siirotbamnus scoparin». See Spartium «co- 

 par turn. 



Sarracenia, heteromorphic leaves, i. 130, 



— storage of pollen, ii. 94. 



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

 pitchers and leaves, i. 130. 



