vii] USTILAGINALES " i95 



brand-spores, basidia and basidiospores appear, but no conjugation could be 

 observed. T. priniulicola thus resembles the Uredinales in having two 

 parasitic generation^, the one with uninucleate, the other with binucleate 

 cells. Its hibernating, uninucleate mycelium also recalls the parasitic 

 mycelium of Ustilago Maydis, or of U. Vaillantii, which consists of uni- 

 nucleate cells. 



USTILAGINALES : BIBLIOGRAPHY 



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 1847 TULASNE, L. R. and C. Mdmoire sur les Ustilaginees compar^es aux Uredindes. 

 Ann. Sci. Nat. 3 s6r. vii, p. 12. 



1853 DE Bary, a. Untersuchungen iiber die Brandpilze und die durch sie verursachten 

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Le Botaniste, iii, p. 240. 

 1899 Harper, R. A. Nuclear Phenomena in certain stages in the development of the 



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13—2 



