INDEX. 



927 



Aira flexuosa, pollination, ü. 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, autogamy, ii. 337. 

 Ajuga, ii. 40. 



— hybrids, ii. 585. 



Ajuga chamsepitys, facultative perennial, Ii. 



453. 

 Ajuga reptans, stolons, i. 663. 



vitality of spermatoplasm, ii. 96. 



Akebia quiuata, Japan, nutation, i. 683. 

 Akinetes, of Cblorophyceae, ii. 628. 



— of Pleurococcus, 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. 5U6. 



— 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 Alchemillse, ii. 524. 



unfolding leaves, i. 349. 



vernation, i. 349. 



Alcohol, production, i. 506. 

 Alder. See Alnus. 



— Alpine. See Alnus viridis. 



— gray. See A Inus 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 iudoloid scents, ii. 207. 

 Aleochara fuscipes, and Dracunculus Creti- 



cus, ii. 165. 

 Aleppo Pine. See Finns hahpensis. 

 Aleurone grains, i. 42, 457, 458. 

 Aleutians and fish-lines of Nereocystis, ii. 



663. 

 Alfredia, absorption cells of hairs, i. 227. 

 Alfredia cernua, i. 97. 



practical demonstration of irrigation, 



i. 96. 

 Algie, 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, 1. 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, ii. 

 862. 



Alisma, no special arrangement for rain- 

 water conduction, i. 98. 



— protective isolation by water, ii. 234. 

 Alisma natans, sub-aqueous fertilization, ii. 



391. 

 Alismacefe, 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. 

 AUiaria, nectary, ii. 175. 

 AUioideae, characteristics, ii. 731. 

 AUionia, cross-fertilization, ii. 304. 



— nectaries, ii. 177. 



AUionia 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. 



Allium Chamsemoly, flowers and autogamy, 

 ii. 386. 



nectaries, ii. 175. 



plant, ii. 386. 



scent, ii. 199, 203. 



stamen movements, ii. 303. 



Allium fistulosum, fistular leaves, i. 428. 



Allium obliquum, leaf twist, i. 429. 



Allium odorum, origin of accessory embryos, 

 ii. 469. 



Allium pater-familias, numerous bulbs, ii. 

 831. 



Allium porrum, ii. 731. 



Allium rotundum, leaf twist, i. 429. 



staminal stipules, ii. 89. 



Allium sativum, cotyledon and germination, 

 i. 606. 



Allium Schcenoprasum, 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 Sphperocephalum, stamen, ii. 87. 



staminal stipules, ii. 89. 



Allium suaveolens, scent of flowers and 

 foliage-leaves, ü. 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. 



Allosoms, protection of sporangia, ii. 13. 



— two kinds of fronds, ii. 12, 476. 

 AUosorus 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-grain, ii. 102. 



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



— pollination, ii. 133, 135. 



— protection of pollen, ii. 119. 



— Iirotogynous, ii. 313. 



— roots, i. 752. 



— texture of mite-galls, ii. 532. 



Alnus glutinosa and gall of Cecidomyia alni, 



ii. 534. 

 &c., bracts and Exoasous Alui-incanie, 



ii. 524. 



chalazogamic fertilization, ii. 413. 



inflorescences, ii. 135. 



root-galls, ii. 521. 



Alnus incana and Exoasous epiphyllus, ii. 527. 



two-coloured leaves, habitat, i. 293. 



with galls of Exoascus Alni-incanse, ii. 



523. 

 Alnus Orientalis, mite-galls, ii. 529. 

 Alniis 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. 

 Alonsoa, 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 hirsutum. 



— Rose-apples, ii. 520. 



— Vine. Hee Atmgene alpina. 



— Willows, Tyrol, i. 524. 

 Alpmia, 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 Trifolium hybridum 

 Alsine Gerardi, autogamy, ii. 355. 

 AJsine mucronata, nectaries, ii. 176. 

 Alsine rubra, weather and autogamy, ii. 391. 

 Alsine vema, cross-fertilization, U. 307. 



nectaries, ii. 176. 



Alsinese, autogamy, ii. 337. 

 Alsophila, ii. 473. 



— caudex, ii. 705. 



— sorus and indusium, ii. 708. 



Alsophila excelsa, dimensions of caudex, 1. 



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. 



Althcea oflicinalis, stomatal protective hairs, 



i. 292. 

 Althaia pallida, effect of mutUation, ii. 517. 



sheltering of pollen, ii. 108. 



Althfea rosea, sheltering of pollen, ii. 108. 

 Alumina in ceU-wall, i. 72. 



— in dust, i. 81. 



— rarely absorbed, i. 68. 

 Alyssum, nectaries, ii. 175. 



— peripheral flowers, ii. 186. 

 Alyssum calyciniim, autogamy, ii. 339. 



colour contrast in inflorescence, ii. 192. 



Alyssum cuneatum, umbellate raceme, ii. 



184. 

 Alyssum montanura, i. 325. 



scent, ii. 202. 



Alyssum Wierzbickii, hairs, i. 321. 

 Alyssum Wulfenianum, peripheral flowers, 



ii. 186. 

 Amanita muscaria. See A (jaricus muscaritis. 

 Amanita phalloides, basidia and spores, ii. 



21, 685. 

 Amaranth, green. See Amarantus Blitum. 

 Amaranthaceie, bracts, ii. 750. 



— leaf-rosettes, i. 412. 



— perianth, ii. 749. 



Amarantus Blitum, leaf-mosaic, i. 411. 

 Amaryllidacea", 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. 



