1050 



Annulus, 323, 425, 49i, 627 



Anomalous structure in stems, 917 



Anther, 780 



Antheridial cell, 585, 681, 701, 711, 



Antheridiophore, 402 



Antherophore, 753 



Anthoceros, 880 



— antheridium, 411 



— archegonium, 412 



— sporogonium, 412 



— structure of thallus, 410 

 Anthoceros glaudidostis, 411 



— laevis, 409 

 Anthocerotales, 508 

 Antholyza paniatlata, 941 

 Anthrisciis, 954 



— sylvestris, 871 

 Anthurium, 827 

 Anti-apex, 829 

 Antibiosis, 339 

 Antibiotic substance, 357 

 Antidromous stipules, 993 

 Antiseptic surgery, 353 

 Aphanomyces, 210 

 Aphyllophorales, 312 

 Apical bud, 846 



— meristem, 846, 861 

 Aplanes, 211 

 Aplanosporangium, 96 

 Aplanospore, 76, 96 

 Aponogeton fenestrale, 958 

 Apophysis, 423 

 Apothecium, 249 

 Apotracheal parenchyma, 901 

 Apple, 840, 930, looi 

 Apposition, growth by, 13 

 Appressorium, 253 

 Aquilegio, 954 



Arabis albida, 1007 

 Araceae, 822, 920, 959, 997 

 Aralia sieboldii, 454, 1027 

 Araucaria, 657, 694, 695, 1033 



— imbricata, 659 

 Araucariineae, 659 

 Arber, 997, 1037 



Arboreal and herbaceous habit, 909 

 Archegonial chamber, 727 

 Archegoniophore, 402 

 Archegonium, evolution of, 447 



— initial, 727 

 Archichlamydeae, 782 

 Archimycetes, 47, 49, 187, 188 



— orders of, 189 

 Arcyria denudata, 191 

 Ardisia crenotci, 356, 357 

 Aril, 646 



Aristolochia sipho, 873 

 Aristotle, 40 

 Armillaria ?uellea, 328 

 Armoracia vulgaris, 827 

 Arrhenatherum , 26 

 Artemisia, 876 

 Artocarpus, g-jc) 



— integrifolia, 821, 962, 963 

 Arum, 955, 997. id 4 



— niaculatum, 791, 940 

 Ascidial leaves, 1044 

 Ascogonium, 249 

 Ascolichenes, 365 



INDEX 



Ascomycetes, 47, 49, 188, 249 

 AscophyUum, 144 



— nodosum, 163, 184, 340 

 727 Ascospore, 188, 249 



Ascus, 188, 249 



Aseptic method, 353 



Ash, 873 



Asparagus, 812, 814, 818, 948 



— officinalis, 925, 926 

 Aspergillus, 237 



— asexual reproduction, 250 



— sexual reproduction, 25 1 

 Aspergillus herbariorum, 250 



— niger, 250 

 Aster, 935 



Asterocalamites, 634, 636 

 Astragalus, 1035 

 Atactostele, 920 

 Atriplex hastata, 1008 

 Atropa belladonna, 88 j 

 Aucuba, 875 



— japonica, 795, 1031 

 Autoecism, 303 

 Autotrophic nutrition, 6 

 Autumn wood, 903 

 Auxiliary' cells, 999 

 Auxin, 845, 853 

 Auxin-a, 893 

 Auxospore, 148 

 Avena planiculmis, 979 

 Avicennia, 824 



Awn, 569 



Axillary' branching, 838 



Azolla ; anatomy of axis, 549 



— development of megasporangium, 553 

 microsporangium, 551 



— embryo, 555 



— sporangium, 550 



— structure of gametophytes, 554 

 Azolla caroliniana, 547 



— filiculoides, 547 

 Azotobacter, 355 



— chroococcum, 345, 358 



Bacillariophyceae, 46, 49, 52, 145 



— orders of, 146 

 Bacillus, 347 

 Bacillus anthracis, 347 



— mycoides, 350 

 — ■ subtilis, 350 



— tetani, 351 

 Bacteria, 47, 49 



■ — and disease, 351 



— cell structure, 344 



— classification, 348 



— cultivation of, 353 



— in relation to higher plants, 355 



— in the soil, 358 



— reproduction, 350 

 Bacterial antagonism, 357 



— metabolism, 349 



— species, 354 

 Bacteriochlorophyll, 346 

 Bacteriology, 2 

 Bacteriophage, 364 

 Bacteriopurpurin, 346 



Bacterium (Pseudomonas) tumefaciens, 356 



— solanacearum, 356 



