SSS THE BASIDIOMYCETES 



auroecious except P. s-nlviitejis, the telial host of which is salt 

 marsh grass, Di.^ichlis spicatj. 



Florists and gardeners have widely encountered Uroviyces 

 caryopkyUinus on carnations, Fuccima cbrysantheiJii on chn's- 

 ant'hemums. P. vialvaceannn on hollyhocks, P. antirrbini on snap- 

 dragons, and various species of Phragmidium on roses. 



LITERATURE CITED 



Attfv . R. F.. "A c\-Toloeical srudv of heterothallism in Fuccima trhic'ma^' 



J. Agr. Research, -H: 734^754, 1932. 

 "A c\-toloeical studv of heterothallism in Pucchiia coronatar J. Agr. 



Research, 4S: SU-S-M, 19323. 

 -A c\-toloeical studv of heterothallism in flax rust." /. Agr. Research, 



49:765-~9l, 1934. 

 ""A c\Toloeical studv of heterothallism in Fuccima sorghi," J. Agr. Re- 

 search, 49: 104~-1068. 1934a. 

 Andrus. C. F.. "The mechanism of sex in Uromyces appenJicuhtus and 



L'. vignae," J. Agr. Research. 42: 559-587, 1931. 

 Arthl-r. J. C, '-Taxonomic importance of the spermogonium," Bull. Tor- 

 rey Botan. Club, SI: 125-159. 1904. 

 "Amphispores of the grass and sedge rusts." Bull. Torrey Botan. Club, 



5:.- 35-^1, 1905. 

 "Uredinales," North. A??!. Flora. -.-83-969, 1907-1931. 

 Manual of the rusts in United States and Canada. 438 pp. Lafayette, 



Ind. 1954. 

 Arthur- J. C et al.. The plant rusts {Uredinales). 446 pp. John Wiley 



and Sons. New York. 1929. 

 AsHwoRTH, E>oROTH\-. "An experimental and c\-tological study of the life 



histor\- of Endophyllum se7?ipervivi,'' Trans. Brit. Mycol. Soc, 19: 



240-258, 1934. 



Barclay. A.. "On the life history- of a remarkable uredine on Jasniinwn 

 grajjJiflonwi L. (Uroviyces curminghaimamis, n. sp.)," Trans. Linn. 

 Soc. London, 3: 141. 1891. 



Bary. Anton de, "Recherches sur le developpement de quelques cham- 

 pignons parasites," Ann. sci. nat. Botan., ser. 4, 20:5-148, 1863. (Vide 



pp. 68-101.) 

 '•Neue Untersuchungen iiber die L'redineen, insbesondere die Entwickel- 

 ung der Puccinia graifiims und den Zusammenhang derselben mit 

 Aecidiwn berberidis," Monatsber. K. Freuss. Acad. Wiss. Berlin, 1865: 



15-49. 1865. 



Bl-^ckman. \'. H.. "On the fertilization, alternation of generations, and 

 general c\-tolog>- of the Uredineae." ^7777. Botany, 18: 323-373, 1904. 



Bi_\cK-MAN, V. U..ASD Helen C. I. Fr.\ser, "Further studies on the sexual- 

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