INDEX. 



927 



Aira fleiuosa, polliDation. ii. 142. 

 Air-bladders of Macrocystis, ii. 633. 

 Air-chambers of Marchantia, ii. 697. 

 Air-spaces in aquatic plants, i. 424. 



of mesophyll, i. 279. 



Aizoon, group of Saxifrages, i. 233. 

 Aizoonia, antoganiy, ii. 337. 

 Ajuga, ii. 40. 



— hybrids, ii. 585. 



Ajuga chamaepitys, facultative perennial, ii. 



453. 

 Ajuga reptans, stolons, i. 663. 



vitality of sperm atoplasm, ii. 96. 



Akebia quinata, Japan, nutation, i. 6S3. 

 Akioetes, of Chlorophyceie, ii. 628. 



— of Pleuroeoccus, ii. 636. 

 Albizzia, pollen -chambers, ii. 90. 

 Albuca, cross-fertilization, ii. 301. 



— nectaries, ii. 175. 



Albuca minor, pollen-grains, ii. 98. 

 Albumen, formation, i. 458. 



— of seed, nature of, ii. 421. 



— osmotic behaviour of, i. 59. 

 Albumens, coagulation, i. 553. 



— composition, i. 457. 



— decomposition and reconstruction, i. 464. 



— putrefactive decomposition, i. 506. 



— soluble and insoluble, i. 453. 

 Albuminoids, i. 72. 

 Albuminous, applied to seed, ii. 421. 



— substances, conducting tissues for, i. 480. 

 Albumins, and respiration, i. 495. 

 Alchemilla, absorption of water collected in- 

 considerable, i. 240. 



— dehiscence of pollen-sacs, ii. 92. 



— honey, ii. 173. 



— protection of pollen, ii. 124, 125. 

 Alchemilla vulgaris, i. 228. 



and animals, i. 432. 



autogamy, ii. 350. 



effect of TJromyces Alchemillie, ii. 524. 



unfolding leaves, i. 349. 



vernation, i. 349. 



Alcohol, production, i. 506. 

 Alder. See Alnus. 



— Alpine. See Alnvs viridis, 



— gray. See Alnus incatia. 

 Aldrovandia, i. 148. 



— dispersal of offshoots, ii. 807. 



— distribution, habitat, description, &c., i. 



151. 152. 153. 



— floating habit, i. 668. 



— pollen dispersion, ii. 105. 



— trap mechanism, i. 150. 

 Aleochara and indoloid scents, ii. 207. 

 Aleochara fuscipes, and Dracunculus Creti- 



cus, ii. 165. 

 Aleppo Pine. See Pinus hahpetisis. 

 Aleurone grains, i. 42, 457, 458. 

 Aleutians and fish-lines of Nereocystis, ii. 



663. 

 Alfredia, absorption cells of hairs, i. 227. 

 Alfredia cemua, i. 97. 



practical demonstration of irrigation, 



i. 96. 

 Algae, and heat, i. 554. 



— calcareous, marine, reef-forming, i. 261. 



— dispersal, i. 246. 



— distribution in lichen -thai lus, i. 244; ii. 694. 



— division of Thallophyta. ii. 604. 



— partners in lichen -thall us, i. 246. 



— proper application of term. i. 246. 



— saprophytic, food-absorption, i. 113 



— symbiosis with animals, i. 254. 



— symbiosis with lichens, ii. 691. 

 Algeria, thistles, i. 438. 



Alhagi Kirgisorum, spines, i. 443. 



Alighting-platforms for insects, ii. 225. 



Alimentary canal, seeds passed through, iL 

 862. 



Alisma, no special arrangement for rain- 

 water conduction, i. 98. 



— protective isolation by water, ii. 234. 

 Alisma natans, sub-aqueous fertilization, ii. 



391. 

 Alismacex, floral characters, &c., iL 739. 

 Alkalies, i. 83. 



Alkaloid, protective, of Atropa Belladonna, 



i. 431. 

 Alkaloids, function, i. 462. 



— poisonous, in roots, i. 763. 

 Alliance, subdivision of class, ii. 617. 

 Alliances, of Braun, ii. 605. 

 AUiaria, nectary, ii. 175. 

 Allioidese. characteristics, ii. 731. 

 Allionia, cross-fertilization, ii. 304. 



— nectaries, ii. 177. 



Allionia violacea, autogamy, ii. 357. 



opening and closing, ii. 212. 



Allium, cotyledon in germination, i. 606. 



— epiphyllous buds, ii. 43. 



— polyembryony, ii. 469. 



Allium ascalonicum, &c., scent, ii. 488. 



Allium Cepa, ii. 731. 



absorbent cells of cotyledon, i. 600. 



fistular leaves, i. 428. 



germinating seed, i. 599. 



AUiiun ChamEemoly, flowers and autogamy, 

 ii. 386. 



nectaries, ii. 175. 



plant, ii. 386. 



scent, u. 199, 203. 



stamen movements, ii. 303. 



Allium fistulosum. fistular leaves, i. 428. 



Allium obliquum, leaf twist, i. 429. 



Allium odorum, originof accessory embryos, 

 ii. 469. 



Allium pater-familias, numerous bulbs, ii. 

 831. 



Allium pomun, ii. 731. 



Allium rotundum, leaf twist, L 429. 



staminal stipules, ii. 89. 



Allium sativum, cotyledon and germination, 

 i. 606. 



Allium Schoenoprasum, ii. 488. 



fistular leaves, i. 428. 



Allium scorodoprasum. ii. 731. 



Allium senescens, leaf twist, i. 429. 



Allium Sibiricum, scent of flowers and 

 foliage-leaves, ii. 199. 



AlHum Sphffirocephalum, stamen, ii. 87- 



staminal stipules, ii. 89. 



Allium suaveolens, scent of flowers and 

 foliage-leaves, ii. 199. 



Allium ursinum, bud, emerging from soil, 

 i. 640. 



habiUt, i. 654. 



Allium Victorialis. geitonogamy, ii. 327. 



stigma, ii. 283. 



Allium vLneale, mechanical tissue arrange- 

 ment, i. 730- 



Allosorus, protection of sporangia, ii. 13. 



— two kinds of fronds, ii. 12, 476. 

 Allosorus crispus, i. 451. 

 Allurement, means of, in pitchers, i. 124. 

 Alluring substances, i. 460. 



Almond oil, decomposition, i. 462. 

 Almonds, conglutin, milk of, i. 458. 

 Alnus and gall-mites, ii. 529. 



— arrangement of foliage-leaves, i. 92. 



— flowering, ii. 150. 



— monoecious, ii. 297. 



— phyllotaxis, i. 399. 



— pollen-graio, ii. 102. 



— pollen storing and dispersion, ii. 94, 148. 



— pollination, ii. 133, 135. 



— protection of pollen, ii. 119. 



— protogynous, ii. 313. 



— roots, i. 752. 



— texture of mite-galla. ii. 532. 



Alnus glutinosa and gall of Cecidomyia aini, 



ii. 534. 

 &c., bracts and Exoascus Alni-Incanae. 



ii. 524. 



■ chalazogamic fertilization, ii. 413. 



inflorescences, ii. 135. 



root-galls, ii. 521. 



Alnus incana andExoascus epiphyllus, ii. 527. 



two-coloured leaves, habitat, i. 293. 



with galls of Exoascus Alni-incaufe, ii. 



523. 

 Alnus orientalia, mite-galls, ii. 529. 

 Alnus viridis, and snow, i. 550. 

 mite-galls, ii. 529. 



Aloe, aqueous tissue, i. 328. 



— caudex, i. 714. 



Aloe denticulata, pollen-grains.ii. 97. 

 Aloes, ii. 731. 



— Cape, mucilaginous juices, i. 329. 



— germination, i. 604. 

 Alousoa, scarlet flowers, ii. 196. 

 Alopecurus, pollination, ii. 142. 

 Alpine and Arctic floras, ii. 905. 



— experimental garden. Kerner's, i. 393. 



— floras, autogamy in, ii. 400. 



— flowers, multiplicity of colours, ii. 198. 



— flowers in the Tyrol ii- PI- XII. 



— plants, high, characteristics of. i. 315. 



— Rose. See Rhododendron hiri^utum. 



— Hose-apples, ii. 520. 



— Vine. See Atragene alpvia. 



— Willows, Tyrol, i. 524. 

 Alpinia. ii. 289. 736. 



— hermaphrodite, ii. 296. 



Alps, Central Europe, autumnal tints, i. 489. 



— Central, lime incrusting Saxifrages, i. 71. 

 meadows, herbage, i. 451. 



— early leaf-fall in, i. 357. 



— protected vegetation, i. 450. 



— red snow in, i. 38. 



— Tyrolese, estabUshed hybrids in, ii. 588. 



observations relating to ammonia, i. 65. 



soil, temperature, and elevation, i. 525. 



— winter cold, i. 547. 



Alsike Clover. See Trifolium hybridum 

 Alsine Gerardi, autogamy, ii. 355. 

 A 1 s in ft mucronata. nectaries, ii. 176. 

 Alsine rubra, weather and autogamy, ii. 391, 

 Alsine vema, cross- fertilization, ii. 307. 



nectaries, ii. 176. 



Alsinese, autogamy, ii. 337. 

 Alsophila. ii. 473. 



— caudex, ii. 705. 



— sorus and indusium, ii. 708. 



Alsophila excelsa, dimensions of caudex, i. 



714. 

 Alternation of generations, ii. 7. 



advantage of, ii. 484. 



among zoophytes, ii. 470. 



and origin of species, ii. 594. 



in Algae, it 481. 



in Mosses, ii. 477. 479. 



in Phanerogams, ii. 478. 



in Thallophyta, ii. 480. 



Althfea oflicinalis, stomatal protective hairs, 



i. 292. 

 Althaea paUida, effect of mutilation, ii. 517. 



sheltering of pollen, ii. 108. 



Althaea rosea, sheltering of pollen, ii. 108. 

 Alumina in cell-wall, i. 72. 



— in dust. i. 81. 



— rarely absorbed, i. 68. 

 Alyssum, nectaries, ii. 175. 



— peripheral flowers, ii 186. 

 Alyssum calycinum, autogamy, ii. 339. 



colour contrast in inflorescence, ii. 192. 



Alyssum cuneatum, umbellate raceme, ii. 



184. 

 Alyssum montanum, i. 325. 



scent, ii- 202. 



Alyssum Wierzhickii, hairs, i. 321. 

 Alyssum Wulfeoianum, peripheral flowers, 



ii. 186. 

 Amanita muscaria. SeeAuaricusmiiscarius. 

 Amanita phalloides, basidia and spores, ii. 



21. 685. 

 Amaranth, green. See Amarantits Blitum. 

 Amaranthaceae, bracts, ii. 750. 



— leaf-rosettes, i. 412. 



— perianth, ii. 749. 



Amarantus BliLum, leaf-mosaic, i. 411. 

 Amaryllidacege, autogamy in, ii. 372. 



— characteristics, ii. 734. 



— epiphyllous buds, ii. 43. 

 Amaryllis, ii. 734. 



— buds on carpels, ii. 44. 



— cross-fertilization, ii. 301. 



— incompletely protog>-noas. ii. 311. 



— ovular tubers or buds. ii. 469. 



— pollen-grains, ii. 99. 100. 



— scentless, ii. 209. 



