624 
INDEX 
Apetahe, 456, 457 
Apex, 13 
Apical cell, 195 
Apothecium, 329, 330, 331, 332 
Araceae, 496 
Aralia spinosa, 27 
Archegonia, 169 
Archegoniates, 222 
Archegoniophores, 197 
Archesporial cell, 439 
Archichlamydeae, 456, 457 
Arctium minus, 486 
Arisaema triphyllum, 51 
Arrow-leaf, 449 
Ascaris, 186 
Asclepiadaceae, 476 
Asclepias, 476, 477 
syriaca, 475, 478 
Ascomycetes, 98 
Ascophyllum, 352, 364 
Ash, 28 
Aspergillus niger, 72 
Aspidium Filix-mas, 158 
Assimilation, 88 
Aster, 24, 25 
Austrian pine, 416 
Avena sativa, 298 
Axil, 150 
Azotobacter, 83, 333 
B 
Bacillus typhosus, 310 
Bacteria, 306 
helpful, 316 
nitrogen-fixing, 318 
Bacteria and the dairy, 316 
Banana, 26 
Barley, 298 
smuts of, 297 
Barrigona palm, 130 
Base of the blade, 13 
Bean, 123, 526 
blight, 309 
Pond, 580 
Beech, 336 
Begonia, 179, 347 
Belladonna, 481 
Bennettites, 602 
Betula, 448 
lutea, ii 
populifolia, 108 
Bindweed, 119, 478, 479 
Biogenesis, 89 
Biology, 3 
Biometry, 548 
Birch, 336, 448 
yellow, ii 
white, 108 
Bittersweet, 481 
Black-mosses, 193 
Black mustard, 464 
walnut, 308 
Bladderwort, 87, 88 
Blade, 13 
Blakeslee, 353 
Blister-blight, 291 
Blister-rust, pine tree, 301, 302 
Btodgett, Frederick H., 443 
Blueberries, 451, 452 
Bolley, Professor, 92 
Boneset, 486 
Boston fern, 163 
ivy, 144 
Botany, educational value of, 5 
fossil, 5 
relation to other sciences, 3 
systematic, 3 
what is, i 
Botrychium, 175, 178, 214 
virginianum, 176 
Bowenia, 333, 411 
serrulata, 594 
Bower, F. O., 573 
