INDEX. 



805 



Apical-cell, 95,452.453. 454. 

 458, 473,545.747. 



— division of, 452, 455. 



— rarity of divisions in, 457. 



— significance of, 457. 



— tetrahedral, 447,456, 743. 

 456. 



Apical cells, groups of, 458, 



462. 

 Afios tuberosa, 672. 

 Apocynacese, 172. 

 Apogamy^ 769,798, 800-802. 

 Apothecia, 707. 

 Apparatus for measuring 



grovpth, 556-558, 561. 



561. 



Apple, 141, 367, 369, 386, 



763,781. 

 Apples, fermentation of, 386. 

 Apposition, growth by, 413. 

 Aquatic plants, 225, 404, 



511, 564, 660. 

 Aquatic roots, 14, 23. 

 Aqueous vapour, 228, 248, 



264, 



— in wood, 268. 

 Arabis, 537. 

 Aralia, 123. 

 Araliaceae, 181, 703. 

 Araucariae, 798. 

 Arbor -vitse, 42. 

 Archegoniata, 721. 

 Archegonium, 465, 524, 525, 



732, 734. 736, 737, 738, 



742. 744. 747-749, 754. 



755, 760, 772-774, 788-, 



789. 

 Arcyria incarnata, 83. 

 Area of leaf-surface, 312, 



S". 513. 



— of wood cell-walls, 241. 

 Argemone mexicana, 175. 

 Arillus, 752. 

 Aristolochia, 220, 473, 548, 



669, 792, 793, 794. 

 ^- Clematkis, 19iZ. 



— -- 792. 

 ^- sipho, 244. 

 Aristolochieas, 180. 

 Armoracia, 802. 



Aroideae, 125, 177, 179, 181, 

 279. 325. 406. 408, 473. 

 478, 497, 498, 704- 



Aroids, 12, 114, 278, 461, 



• 470, 49°, 545. 699- 



— roots of, 24, 693, 695. 

 Arrested leaves, 55, 61, 506, 



507. 

 Artichokes, 576, 651, 652. 

 Artificial cells, 215, 275. 



— cultures, 283, 286, 295. 



— selection, 329. 

 Arum.Italicum, 406. 

 Asarum, 51. 



Asarum Europxum, 47. 

 Ascending sap, 1 56, 2 2 5, 5 1 1 . 

 Ascent of water in root- 

 stock, 276. 



in stem, 225, 253, 264. 



in stem, velocity of, 



235. 

 Asci, 726. 

 Asclepiadeae, 54, 171, 172, 



174. 789. 794. 

 Asclefias, 174. 



— carnosd, 669. 

 Ascoholus, 726, 727. 



— furfuraceus, 726. 

 Ascogenous hyphae, 726. 

 Ascomycetes, 391, 514, 726, 



727, 800. 

 Asexual reproductive organs, 



724. 732, 740. 

 . — reproduction, 728, 770, 



798, 799. 802. 



— spores, 768, 769. 

 Ash-analyses, 287, 290, 320, 

 constituents, 79, 290, 



296. 313. 320, 355. 388, 

 509. 

 Ash-constituents of fungi, 

 383. 



— of parasites, 372. 

 Asparagin, 345, 355, 363. 



— as food for fungi, 384. 



— detection and reactions 

 of, 346. 



— disappearance in light, 

 346. 



— importance of, 325. 



— metamorphoses of, 326, 



346. 



— occurrence of, 347. 

 Asparaginese, 55. 

 Asparagus, 61, 685. 



— asper, 543. 



• — officinalis, 61. 

 Aspects of vegetation, 702. 

 Asphalt, 294. 

 Asphyxia, 595. 

 Aspidium, 185, 471. 



— Fiiix-mas, 13, 40, 129, 

 421, 478, 780. 



— Filix-mas, 129. 



— spinulojum, 51, 780. 

 Asplenium caudatum, 478. 



— decussatum, 478. 

 478. 



— falcatum, 80 r. 

 — filix femina, 456. 



801. 



Assimilating cells, 248. 



— chlorophyll - corpuscles, 

 316. 



— surface, 227. 



— tissue, 148, 535. 

 Assimilation, 226, 250, 264, 



286, 289, 291, 293, 295. 



296, 308, 309, 324, 364, 

 366, 397, 411, 412, 508, 

 510, 521, 579. 

 Assimilation, apparatus for 

 showing, 304. 



— chemistry of, 297, 314; 

 317. 



— curve of, 305. 



— energy of, 311. 



— equal volumes of gases 

 concerned in, 298. 



' — experiments on, 310. 



— intermediate products of, 



317. 



— rate of, 304. 



— specific energy of, 312. 



— a local act, 310. 



— and chlorophyll, 299,509. 



— independent of growth, 

 300, 411, 412. 



— necessity of carbon diox- 

 ide in, 310. 



— quantityof starch formed, 

 312-314. 



— and light, 198, 294, 296, 

 299, 301, 307, 309, 535. 



■ — in coloured lights, 304. 



— in electric light, 307. 



— in intense light, 311. 



— in insectivorous plants, 



375- 



— in Lichens, 392, 393, 

 514. 



— products of, 299, 306, 



309, 314, 317, 318, 357, 



403, 533, 763. 



— chemical metamorphoses 

 of products of, 323. 



Astragalus, 371. 



— tragacantha, 57. 

 Atherurus tematus, 478. 

 Atmosphere, composition of, 



293. 

 Atmospheric carbon, 292, 



294. 



— nitrogen, 291. 



— pressure, 269. 

 Atriplex, 640. 



— hortensis, 299. 

 Attachment of root-hairs 



to soil, 257, 259. 

 Attraction of sexual cells 



one to another, 737, 772- 



778. 

 Autumn-leaves, 318, 319. 

 wood, 162, 230, 268, 



578. 

 Auxanometer, 556, 557, 558. 



— 557. 



Avoidance of self-fertilisa- 

 tion, 787, 790. 791. 794- 

 797. 799- 



Axial longitudinal section, 

 483. 



