INDEX 



Boldface folios indicate main discussion of topic. 



Abe, 24 



Abies, 395, 403, 405, 494 

 Absidia, 165 

 oerulea, 160 

 glnuca, 160, 163, 164 

 septula , 164 

 spi7iosa, 160 

 Abstoma, 553 

 Acaulopage, 179 

 Acer, 235, 589 

 rubrum, 235 

 Acervulus, 231, 263, 333, 334 

 Achlya, 106, 107, 108, 109, 110, 112, 

 130, 142 

 flagellata, 110 

 glomerata, 34 



oblongata, var. globosa, 104 

 polyandra, 104 

 racemosa, 111 

 Achlyogeton, 95 

 Achlyogetonaceae, 50 

 /I cm, 482 

 Acrasiales, 23, 29, 30, 35, 36, 631 



key to genera, 38 

 .4rr«s/s, 30 

 Actinodothis, 319, 354 

 Actinomyces, 179, 585, 603 



6o?;is, 585 

 Actinomycetaceae, 585 

 Actinomycetales, 585 

 Actinonema, 231 

 Adams, 387 



Aecial priniordivim, 386, 390 

 Aecidiospore, 381 

 Aecidium, 408, 572 



berberidis, 18 

 Aeciosporo, 381, 388 



origin of chains, 392 

 Aecium, 399 



caeomoid, 400, 407, 408 

 cornute, 399, 407 



Aecium — {Continued) 

 cupulato, 399, 400, 407 

 diffuse, 399, 408 

 hyphoid, 399, 400, 407 

 secondary, 399 

 types, 400 

 uredioid, 407 



Aethalium, 28 



Agaricaceae, 9, 10, 11, 12, 193, 

 469, 470, 480, 484, 494, 



497, 498, 500, 501, 502, 



505, 506, 507, 509, 510, 

 534, 540, 541, 543 



keys to genera, 520 

 115, Agaricacces, 470 



Agaricales, 335, 464, 469, 471, 



498, 534 

 origin, 652 



Agaricum, 11 

 fungus, 10 



Agaricus, 10, 11, 502, 504, 507, 

 542 

 arvensis, 196, 498, 502, 509 

 campestris, 196, 369, 374, 498, 



506, 509, 589 

 rodmani, 502 



Ajello, 63 



Alhuginaceae, 8, 127, 135, 136, 

 key to genera, 145 



Albugo, 135, 139, 142 

 bliti, 136, 137 

 Candida, 135, 137, 139 

 i pomoeae-panduranae 138 

 portulacae, 133, 137, 138 

 tragopogonis, 137 



Aleuria umbrina, 586 



Aleuriospore, definition of, 575 



Aleurodiscus, 475 

 amorphus, 474 



Algae, blue-green, 217 

 green, 217 



Alina, 317 



Alisma, 65 

 757 



372, 467, 

 495, 496, 

 503, 504, 

 511, 532, 



473, 495, 



509, 540, 

 501,502, 



138, 139 



