INDEX. 



Absorption, 13, 22-28 



Aceraceae, 497 



Acorn, 451 



Acorus, 493 



^cidiomycetes, 218 



^cidiospore, 189 



^Esculus hippocastanum, 498 



Agaricaceae, 199, 219 



Agaricus arvensis, 206 



Agaricus campestris, 200-207 



Akene, 451 



Albumen, 98 



Albuminous, 98, 108 



Alder, 495 



Algae, 136-176 



Algae, absorption by, 22 



Alismaceae, 493 



Alpine formation, 474 



Alpine plant societies, 483 



Amanita phalloides, 207, 208 



Amaranth, 495 



Amaryllidacese, 494 



Aments, 429 



American mistletoe, 495 



Ampelopsis, 498 



Ancylistales, 215 



Andreales, 249 



Andrcecium, 319, 419 



Anemophilous, 435 



Angiosperms, morphology of, 318- 



348; classification, 487 

 Antheridiophore, 227 

 Antheridium, 144, 149, 155, 176, 223, 



228, 240, 245, 246, 266, 287, 433 

 An thesis, 429 

 Anthoceros, 240, 241 

 Anthocerotales, 242 

 Anthocerotes, 242 

 Apogamy, 346 

 Apogeotropic (ap"o-ge"o-trop'ic) , 



126 



Apogeotropism (ap"o-ge-ot'ropism), 



126 



Apple, 456, 497 

 Apple family, 497 

 Aquatic formations, 475 

 Aquatic plant societies, 486 

 Araceae, 493 

 Archegonia (ar-che-go'ni-a), 223, 



229, 233, 241, 244-246, 267, 288, 



29 *> 37, 3 8 

 Archegoniophore, 229 

 Archegonium, 433 

 Archesporium (ar"che-spo'ri-um), 



235 



Archidiales, 249 

 Arctic formation, 481 

 Aril, 457 

 Arisaema, 493 



Arisaema triphyllum, 442, 443 

 Aristolochiales, 705 

 Arrow leaf, 492 

 Arum family, 493 

 Asclepias, 500 

 Asclepias cornuti, 462 

 Ascomycetes (as-co-my<e'tes), 195- 



198, 216-218 

 Ascus, 190, 213 

 Ash of plants, 79, 80 

 Ash tree, 500 



Aspidium acrostichoides, 253, 257 

 Assimilation, 67, 109 

 Aster, 502 

 Atriplex, 495 

 Auric ulariales, 218 

 Autotrophic plants, 85 

 Azalea, 499 

 Azolla, 296 



Bacteria, 164, 165 



Bacteria, nitrite and nitrate, 83 



Bacteriales, 164, 165 



53 



