336 PHYSIOLOGY OF THE FUNGI 



organisms and its application to fungi, Proc. Intern. Congr. Plant Sci., 1st Congr., 



2: 1G03-1611, 1929. 

 Klebs, G.: Zur Physiologic dcr Fortflanzung einiger Pilze. 11. Saprolegnia mixta 



de Bary, Jahrb. wiss. Botan. 33: 519-593, 1899. 

 Klebs, G.: Zur Physiologic der Fortflanzung einiger Pilze. III. Allegemeine 



Betrachtungen, Jahrh. iriss. Botan. 35: 80-203, 1900. 

 KuNKEL, L. O. : A method of obtaining abundant sporulation in cultures of Macro- 



sporium solani, Brooklyn Botan. Garden Mem. 1 : 306-312, 1918. 

 Leaver, F. W., J. Leal, and C. R. Brewer: Nutritional studies on Piricularia 



oryzae, Jour. Bad. 54 : 401-408, 1947. 

 Leonian, L. H.: The physiology and perithecial and pycnidial formation in Valsa 



leucostoma, Phytopathology 13: 257-272, 1923. 

 *Leonian, L. H.: a study of factors promoting pycnidium formation in some Sphaer- 



opsidales, Am. Jour. Botany 11 : 19-50, 1924. 

 Leonian, L. H.: Control of sexual reproduction of Phytophthora cactorum, Am. 



Jour. Botany 23: 188-190, 1936. 

 Leonian, L. H., and V. G. Lilly: Partial purification of a vitamin-like substance 



which stimulates sexual reproduction in certain fungi, Am. Jour. Botany 24: 



700-702, 1937. 

 Lilly, V. G., and H. L. Barnett: The influence of pH and certain growth factors on 



mycelial growth and perithecial formation by Sordaria fimtcola, Am. Jour. 



Botany 34: 131-138, 1947. 

 *Lindegren, C. C., and E. Hamilton: Autolysis and sporulation in the yeast colony, 



Botan. Gaz. 105: 316-321, 1944. 

 Lindegren, C. C., and G. Lindegren: Sporulation in Saccharomyces cerevisiae, 



Botan. Gaz. 105: 304-316, 1944. 

 LocKWOOD, L. B. : Hydrogen ion concentration and ascus formation, Mycologia 29 : 



289-290, 1937. 

 LocKWOOD, L. B., and G. E. Ward: The physiology of Ehizopus oryzae, Jour. Agr. 



Research 53 : 849-857, 1936. 

 McCallan, S. E. A., and S. Y. Chan: Inducing sporulation of Alternaria solani in 



culture, Contribs. Boyce Thompson Inst. 13 : 323-336, 1944. 

 Mader, E. O.: Some factors inhibiting the fructification and production of the 



cultivated mushroom, Agaricus campestris L., Phytopathology 33: 1134-1145, 



1943. 

 Mathur, R. S., H. L. Barnett, and V. G. Lilly: Factors influencing growth and 



sporulation of CoUetotrichum lindemuthianum in culture, Phytopathology 40: 



104-114, 1950. 

 Mex, A. J.: Factors affecting the sporulation of Phyllosticta solitaria in artificial 



culture, Phytopathology 23: 503-524, 1933. 

 Mrak, E. M., and L. Bonar: The effect of temperature on asci and ascospores in the 



genus Debaryomyces, Mycologia 30: 182-186, 1938. 

 Nickerson, W. J., and K. V. Thimann: The chemical control of conjugation in 



Zygosaccharomyces. I. Am. Jour. Botany 28: 617-621, 1941. 

 Nickerson, W. J., and K. V. Thimann: The chemical control of conjugation in 



Zygosaccharomyces. II. Am. Jour. Botany 30: 94-101, 1943. 

 Porter, C. L.: Concerning the character of certain fungi as exhibited by their 



growth in the presence of other fungi. Am. Jour. Botany 11: 168-188, 1924. 

 Ramsey, G. B., and A. Bailey: Effects of ultra-violet radiation upon sporulation in 



Macrosporium and Fusaritim, Botan. Gaz. 89: 113-136, 1930. 

 Rands, R. D.: The production of spores by Alternaria solani in pure culture, Phyto- 

 pathology 7: 316-317, 1917. 



