BLAKESLEE. SEXUAL REPRODUCTION- IX THE MUCORINEAE, 319 



Zopf. W. 



'88. Ziir Kennt. d. infect. Krankh. nied. Thiere u. Pflaiizen., Nova Acta 



Acad. Leop., Bd. 52, Nr. 7. pp. 352-358, Taf. 6. 

 '92. Beitriige z. Morph. u. Physiol, uiederer Organ. Leipzig. Heft 2, 

 pp. 1-56, Taf. 1-5. 

 Zukal. H. 



"90. Thamnidiuiu mucoroides. Verhandlung. zool. bot., Ges. Wien,, 

 Bd. 40, pp. 587-590, Taf. 9. 



The following additional reference to the American occurrence of Spi- 

 nellus fuxiger and S. marrocarpus came to the writer's notice too late for 

 insertion in the body of this paper. 



Atkinson, G. F. 



"01. Studies in American Fungi. 2d edit., p. 95. 



