INDEX. 



927 



Aira flexuosa, poUiDation, ii. 142. 

 Air-bladders of Macrocystis, ii. 633. 

 Air-chambers of Marchantia, ii. 697. 

 Air-spaces in aquatic plants, i. 424. 



of mesophyll, 1. 279. 



Aizoon, group of Saxifrages, i. 233, 



Aizoonia, autoganiy, ii. 337. 



Ajuga, ii. 40. 



-:- hybrids, ii. 585. 



Ajugg, chamjepitys. facultative pferennial, ii. 



453. 

 Ajuga reptans, stolons, i. 663. 



vitality of sperm atoplasm, ii. 96. 



Akebia quinata, Japan, nutation, i. 683. 

 Akinetes, of Chlorophycese, ii. 628. 



— of Pleurococous, ii. 636. 

 Albizzia, poUen-charabers, ii. 90. 

 AJbuca, 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. 458. 

 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 Uromyces Alchemilla, ii. 524. 



unfolding leaves, i. 349, 



vernation, i. 349. 



Alcohol, production, 1. 506. 

 Alder. See Alnus. 



— Alpine. See Alnus viridis* 



— gray. See Alnus incana. 

 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- 



cu3, ii. 165. 

 Aleppo Pine. See Pinus halepensis. 

 Aleurone grains, i. 42, 457, 458. 

 Aleutians and fish-hnes of Nereocystis, ii. 



663. 

 Alfredia, absorption cells of hairs, i. 227, 

 Alfredia cemua, i. 97. 



practical demonstration of irrigation, 



i. 96. 

 Algse, and heat, i. 554. 



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



— dispersal, i. 246. 



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



— division of Thallophyta, ii. 604. 



— partners in lichen-thallus, i. 246. 



— proper application of term, i. 246. 



— saprophytic, food-absorption, i. 113 



— symbiosis with animals, i. 254. 



— symbiosis vpith lichens, ii. 691. 

 Algeria, thistles, i. 438. 



Alhagi Kirgisorum, spines, i. 443. 



Alighting-platforms for insects, ii. 225. 



Alimentary canal, seeds passed through, ii. 

 862. 



Alisma, no special arrangement for rain- 

 water conduction, i. 98. 



— protective isolation by water, ii. 234. 

 AUsma natans, sub-aqueous fertilization, ii. 



391. 

 Alismaceee, floral characters, &c., ii. 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. 

 Alliaria, 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. 



— polj'embryony, 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. 



Allium Chamsemoly, flowers and autogamy, 

 ii. 386. 



nectaries, ii. 175. 



plant, ii. 386. 



scent, ii. 199, 203. 



stamen movements, ii. 303. 



Allium flstulosum, flstular leaves, i. 428. 



Allium obliquum, leaf twist, i. 429. 



Allium odorum, originof accessory embryos, 

 ii. 469. 



Allium pater-familias, numerous bulbs, ii. 

 831. 



Allium porrum, ii. 731. 



Allium rotimdum, leaf twist, i. 429. 



stamina! stipules, ii. 89. 



Allium sativum, cotyledon and germination, 

 1. 606. 



Allium Sehoenoprasum, 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. 



Allium Sphserocephalum, 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. 



habitat, i. 654. 



Allium Victorialis, geitonogamy, ii. 327. 



stigma, ii. 283. 



Allium vineale, 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. 



— poUen-grain, 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-galls, ii. 532. 



Alnus glutinosa and gall of Cecidomyia alni, 



ii. 534. 

 &c., bracts and Exoascus Alni-Incanse, 



ii. 524. 



chalazogamic fertilization, ii. 413. 



inflorescences, ii. 135. 



root^galls, ii. 521. 



Alnus incana and Exoascus epiphyllus, ii. 527. 



two-colomred leaves, habitat, i. 293. 



T^ith galls of Exoascus AIni-incanae, ii. 



523. 

 Alnus orientalis, mite-galls, ii. 529. 

 Alnus viridis. and snow, i. 550. 

 mite-galls, ii. 529. 



Alog, aqueous tissue, i. 328. 



— caudex, i. 714. 



Aloe dentioulata, polIen-graina,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. 



— Kose. See Rhododendron hirsutum. 



— Rose-apples, ii. 520. 



— Vine. See Atragene alpina. 



— "WiUows, 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, established hybrids in, ii. 588. 



observations relating to ammonia, i. 65. 



soil, temperature, and elevation, i. 525. 



— winter cold, i. 547. 



Alsike Clover. See THfolium hybridum 

 Alsine Gerardi, autogamy, ii. 355. 

 Alsine 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, L 



714. 

 Alternation of generations, ii. 7. 



advantage of, ii. 484. 



among zoophytes, ii. 470. 



and origin of species, ii. 594. 



in Algse, ii. 481. 



in Mosses, ii. 477, 479. 



in Phanerogams, ii. 478. 



in Thallophyta, ii. 480. 



Althaea oflicinalis, stomatal protective hairs, 



i. 292. 

 Althaia pallida, effect of mutilation, ii. 517. 



sheltering of poUen, ii. 108. 



Althaea rosea, sheltering of pollen, ii. 108. 

 Alumina in cell-wall, i. 72. 



— in dust, i. 81. 



— rarely absorbed, i. 68. 

 AlysEum, 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 Wierzbickii, hairs, i. 321. 

 Alyssum Wulfenianum, peripheral flowers, 



ii. 186. 

 Amanita muscaria. SeeAgaricusmiLsca/riits. 

 Amanita phalloides, basidia and spores, ii. 



21, 685. 

 Amaranth, green. See Amarantus Blitum. 

 Amaranthacese, bracts, ii. 750. 



— leaf-rosettes, i. 412. 



— perianth, ii. 749, 



Amarantus Blitum, leaf -mosaic, i. 411. 

 Amaryllidacese, autogamy in, ii. 372. 



— characteristics, ii. 734. 



— epiphyllous buds, ii. 43. 

 Amaryllis, ii. 734. 



— buds on carpels, ii. 44. 



— cross-fertilization, ii. 301. 



— incompletely protogynous, ii. 311. 



— ovular tubers or buds, ii. 469. 



— pollen -grains, ii. 99, 100. 

 scentless, ii. 209. 



