INDEX 



731 



Oidium, Fragarise, 175, 669 



Leucoconiuin, 176, 669 



Mespilinum, 670 



Monilioides, 179, 669 



Quercinum, 670 



Tabaci, 570 



Tuckeri, 181, 669 



Verbena, 670 



Okra, 650, 651 



Oleaceae, 164 



Oleander, 36, 45, 192, 193, 422, 524, 



631 

 Oleina, 122 

 Olive, 34, 45, 155, 192, 193, 433, 486, 



493, 543, 602, 624 

 Olopecurus, 383 

 Olpjdiaoeae, 67, 69 



Key to, 68 



Olpidiopsis, 68 

 Olpidium, 68, 69, 72 



Brassicae, 68, 69 



Olpitrichum, 575 



Ombrophiles, 136 



Omphalia, 450 



Oncidium, 356, 392, 544, 605 



Oncopodium, 615 



Oncospora, 537 



Onion, 41, 42, 43, 52, 97, 200, 377, 



491, 497, 499, 512, 520, 541, 549, 



574, 581, 604, 603, 616, 618, 



620 

 Onobrychis, 168 

 OnygenacesB, 165 

 Oochytriacese, 67, 76 



Key to, 73 



Oomyces, 199 

 Oomycetes, 62, 65, 66, 101 

 Oospora, 475, 567, 668, 668 



Abietum, 668 



Scabies, 668 



Ophiobolus, 252, 269, SB9 



Graminis, 269 



Herpotrichus, 269 



Oryzeae, 269 



Ophioceras, 232 

 Ophiochseta, 252 



Ophiocladium, 566, 667 



Hordii, 667, 567 



Ophiodothis, 216 

 Ophiomassaria, 262 

 Ophionectria, 198, 207 



Coccicola, 207 



Foliicola, 207 



Ophiotrichum, 609 



Opsis-type, 328 



Opuntia, 544 



Orange, 207, 249, 256, 260, 409, 422, 



435, 445 

 Orbicula, 189 

 Orcadellacese, 9 

 Orchard Grass, 52, 550 

 Orchid, 46, 52, 205, 270, 392, 500, 



541, 544, 547, 631 

 Orchis, 344 

 Ornithogalum, 71, 320 

 Osage Orange, 346 

 Ostreion, 164 

 Ostropacese, 160 

 Ostrya, 188 

 Otthia, 234 

 Ovularia, 243, 577, 682, 682 



Alnicola, 682 



Armoracise, 682 



Canaigricola, 682 



Citri, 682 



Corcellensis, 682 



Exigua, 682 



Interstitialis, 682 



Medicaginis, 682 



Necans, 682 



Primulana, 682 



Rosea, 682 



Syringae, 682 



Viciae, 682 



Villiana, 682 



Ovulariopsis, 188, 577, 682 



Ulmoriea, 682 



Oxalis, 168, 329, 384 

 Ozier, 253 

 Ozonium, 657, 661 

 Omnivorum, 662 



