INDEX. 



Absorption, 13, 22-28 



Acclimatization, 469 



Aceraceae, 685, 707 



Acer saccharinum, 685 



Acorn, 451 



Acorus calamus, 662, 703 



Adansonia, 534 



^Ecidiomycetes, 218 



/Ecidiospore, 189 



^sculus hippocastanum, 686, 707 



Agaricaceae, 199, 219 



Agaricus arvensis, 206 



Agaricus campestris, 200-207 



Agave, 560 



Agropyron dasystachyum, 592, 594 



Agropyron pseudorepens, 561, 563 



Agropyron tenerum, 590 



Agrostis hiemalis, 602 



Akene, 451 



Albumen, 98 



Albuminous, 98, 108 



Alder, 704 



Algae, 136-176, 589, 653 



Algae, absorption by, 22 



Alismaceae, 702 



Alkaline basins, 618 



Almond family, 680 



Alpine formation, 516, 526 



Alpine plant societies, 582-585 



Alum-root, 602 



Amanita phalloides, 207, 208 



Amaranth, 705 



Amaryllidaceae, 703 



Aments, 429 



American mistletoe, 70^ 



Ammophila arenaria, 592, 599 



Amrnophila arundinacea, 594 



Ampelopsis, 708 



Ancylistales, 215 



Andreales, 249 



Andrcecium, 319, 419 



Andromeda polifolia, 609 

 Andropogon furcatus, 559, 561 

 Andropogon scoparius, 55), 561 

 Anemophilous, 435 

 Angiosperms, morphology )f, 318- 



348 

 Angiosperms, representative families, 



648-701 



Antennaria campestris, 562 

 Antheridiophore, 227 

 Antheridiutn, 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) l 



126 

 Apogeotropism (ap"o-geot'ro- 



pism), 126 

 Apple, 456, 681, 706 

 Apple family, 680, 706 

 Aquatic formations, 521, 526 

 Aquatic plant societies, 620-629 

 Araceae, 662, 703 

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



229, 233, 241, 244-2^6, 267, 288, 

 29 1 * 307-308 



Archegoniophore, 229 



Archegonium, 433 



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



235 . 



Archidiales, 249 



Arctic formation, 516, 526, 576-582 

 Arenaria stricta, 602 

 Aril, 457 



Arisaema, 662-666, 703 

 Arisaema triphyllum, 442, 443 

 Aristolochiales, 705 

 Arrow leaf, 625, 626, 702 



725 



