LITERATURE CITED 431 



— ■: Uninucleated aecidiospores in Caeoma nitens and associated phenomena, 

 ibid., 28(10) :1045-1058.P;s. 1-5. 1924. 



AND L. O. Gaiser: The question of nuclear fusions in the blackberry rust, 



Caeoma nitens, ibid., 32(11). -1003-1024. Pis. 1-4. 1926. 

 Drayton, F. I.: The sexual mechanism of Sclerotinia Gladioli, Mycologia, 2Q{1): 



46-72. Pis. 5-7. Figs. 1-4. 1934. 

 Eddins, a. H.: Pathogenicity and cultural behavior of Ustilago zeae (Beckm.) 



Ung. from different localities, Phytopathologij, 19(10) :885-916. Figs. 1-7. 



1929. 

 Eriksson, Jakob : Ueber die Specialisierung des Parasitismus bei den Getreide- 



rostpilzen, Ber. deut. botan. Ges., 12(9):292-331. 1894. 

 : Ueber die Specialisierung des Getreideschwarzrostes in Schweden und in 



anderen Landern, Centr. Bakt., Parasitenk., Zweite Abt., 9(16):590-607; 



(17-18) :654-658. 1902. 

 Fischer, E.: Beitrag zur Kenntnis der Gattung Graphiola, Botan. Ztg., 41(45): 



745-756; (46):761-773; (47):777-788; (48) :791-801. P/. 6. 1883. 

 : Zur Kenntnis von Graphiola und Farysia, Ann. Mycol., 18(4-6) :188-197. 



Figs. 1-7. 1920. 



Weitere Beitrage zur Kenntnis der Gattung Graphiola, ibid., 20(3-4): 



228-237. Figs. 1-4. 1922. 

 Fischer, George W.: The longevity of smut spores in herbarium specimens, 



Phytopathologij, 26(12) :1 118-1 127. 1936. 

 : Fundamental studies of the stripe smut of grasses (Ustilago striaeformis) 



in the Pacific Northwest, ibid., 30(2):93-118. Figs. 1-4. 1940. 

 -, AND C. S. Holton: Inheritance of sorus characters in hybrids between 



Ustilago avenae and U. perennans, Mycologia, 33(5) :555-567. Figs. 1-3. 1941. 

 Flerov, B. K. : Sur la cytologie de I'Ustilago Avenae Pers. d'apres des cultures in 



vitro, in Travaux de la Section de Mycologie et de Phytopathologie de la 



Soci^te Botanique de Russe: Tome I. Travaux de la Division de Moscou, pp. 



23-36. PI. 3. 1923. (Russian, with French summary.) 

 Flor, H. H. : Heterothallism and hybridization in Tilletia tritici and T. levis, /. 



A^r. Peseorc/i, 44(1) :49-58. 1932. 

 : Physiologic specialization of Melampsora lini on Linum usitatissimum, 



ibid., 51(9):819-837. PL 1. 1935. 

 Freeman, E. M., and E. C. Johnson: The rusts of grains 'm the United States, 



U. S. Dept. Agr. Bureau of Plant Industry Bull. 216:1-87. PI. 1. 1911. 

 Fries, Elias: Ordo IV. Hypodermii, Systema Mycologicum, sistens fungorum 



ordines, genera et species hucusque cognitas, vol. 3, pp. 504-519. Greifswald, 



Ernest Mauritius, 1832. 

 Gaumann, Ernst Albert: Comparative Morphology of Fungi. Translated and 



revised by Carroll William Dodge, xiv + 701 pp. 406 figs. New York, 



McGraw-Hill Book Company, 1928. 

 Grove, W. B.: The evolution of the higher Uredineae, New Phytologist, 12(3) :89- 



106. Figs. 1-2. 1913. 

 Hanna, W. F.: The problem of sex in Coprinus lagopus, Ann. Botany, 39(154): 



431-457. 1925. 



: Nuclear association in the aecium of Puccinia graminis. Nature, 124 



(3120) :267. 1929a. 

 : Studies in the physiology and cytology of Ustilago zeae and Sorosporium 



reilianum, Phytopathology, 19(5):415-442. PI. 7. Figs. 1-3. 1929b. 



: The discharge of conidia in species of Entyloma, Mycologia, 30(8) :526- 



536. Fi^. 1. 1938. 



