782 



INDEX 



Puccinia — {Continued) 



glumarum, 408 



graminis, 14, 18, 385, 388, 389, 390, 

 394, 395, 406, 408 

 agrostidis, 389 

 secalis, 389 

 tritici, 8, 382, 389 



helianthi, 382, 388, 390, 394, 395 



iridis, 382 



malvacearum, 394, 396, 397 



pringsheimiana, 388 



prostii, 397 



rubigo-vera, 408 



tritici, 382, 388, 395, 396 



sorghi, 17, 382, 390, 391, 395, 408 



triticina, 388, 389, 390 



tumidipes, 383 

 Pucciniaceae, 369, 398, 405, 406 



key to genera, 425 

 Pucciniastrum, 399, 402 



goeppertianum, 403 

 Puff ball, 2, 7 

 Pycnidium, 194, 219, 263 



definition, 575 

 Pycniospore, 386 

 Pycnium, 386 



Pycnoporus cinnabarinus, 491 

 Pycnothyriaceae, 581 

 Pycnothyriales, 581 

 Pyrenomycetes, 16, 262, 332 



ostiolate, key to orders, 299 

 Pyrenophora, 202, 296 



teres, 296, 297, 596 



trichostoma, 296 

 Pyrenula, 285 

 Pyrenulales, 223, 271, 272, 285 



key to families, 302 

 Pyronema, 193, 203, 210, 211, 220, 224, 

 225, 227, 243, 293, 351 



omphalodes, 207, 209 



omphalodes var. inigneum, 210 

 Pyrrhosorus, 97 



Pythiaceae, 95, 97, 98, 126, 127, 128, 131, 

 133, 134, 138, 633 



key to genera, 145 

 Pythiella, 100, 126 

 Pythiogeton, 135 



transversum, 134 

 Pythiomorpha, 135 

 Pythiopsis, 105, 106, 109, 110 



cyniosa, 110 

 Pythium, 8, 95, 100, 102, 114, 127, 130, 

 132, 133, 134, 135, 142, 634 



aphanidermatum , 130 



debaryanum, 130 



dictyosporum, 128 



monospermuni, 130 



polysporum, 129 



Pythium — (Continued) 

 proliferurn, 127, 128 

 torulosum, 128 



Q 



Quadripolar sexual phases, 501 

 Queletia mirabilis, 556 

 Quercus, 239, 293, 497 

 Quintanilha, 377 



R 



Rabenhorst, 13 

 Races, biologic, 382 



geographic, 378 

 Raciborski, 322, 334 

 Radicula armor acia, 591 

 Radiigera, 553 

 Radulaspore, 589 



definition of, 575 

 Radulum, 482 

 Rafflesia, 2 

 Ramaria, 480 

 Ramlow, 201, 224 

 Ramularia, 573, 590, 598 



armoraciae, 591 



rosea, 590 



tulasnei, 298, 591 

 Ramularisphaerella, 298 

 Ranunculaceae, 421 

 Raper, 29, 107, 156 

 Raper and Thorn, 587 

 Ravenelia, 394, 402, 408 



acaciae-micranthae, 407 

 Rawitscher, 414 

 Rea, Carleton, 476, 477, 485, 486, 515, 



557, 565 

 Rea, P. M., 557 

 Receptacle, 543 

 Receptive hypha, 389 

 Red Seaweeds, 2, 97 

 Reduction division, 112 

 Reed, 316 

 Reesia, 71 



amoeboides, 71 

 Rehsteiner, 533, 537 

 Reijnders, 507, 509 

 Reuake, 218 

 Renisberg, Miss, 478 

 Renn, 30 

 Reproduction, asexual, 5 



sexual, 5 

 Respiratory hyphae, 224 

 Resting sporangia, 65, 66, 67, 79, 83, 84, 



85, 86, 143, 144 

 Resting spore, 79, 95, 96, 99, 102, 181, 

 182 



