



PAGE 



An Edible Garden Hebeloma E. A. Burt 171-174 



Protomerulius Farlowii Burt, n. sp E. A. Burt 175-177 



The Micro-Colorimeter in the Indi- 

 cator Method of Hydrogen Ion 

 Determination B. M. Duggar 179-181 



Studies in the Physiology of the 

 Fungi. VIII. Mixed Cultures . . 



S. M. Zeller and Henry Schmitz 183-192 



Studies in the Physiology of the 

 Fungi. IX. Enzyme Action in 

 Armillaria mellea Vahl, Daedalea 

 confragosa (Bolt.) Fr., and Poly- 



porus lucidus (Leys.) Fr 



Henry Schmitz and S. M. Zeller 193-200 



Studies in the Physiology of the 

 Fungi. X. Germination of the 

 Spores of Certain Fungi in Rela- 

 tion to Hydrogen Ion Concentra- 

 tion R. W. Webb 201-222 



Diastase Activity in Relation to 

 Stage of Development and Carbo- 

 hydrate Content of the Tuber of 

 Solanum tuberosum R. A. McGinty 223-251 



E. A. Burt 253-280 



The Thelephoraceae of North Amer- 

 ica. XI 



I 



A Subterranean Algal Flora 



G. T. Moore and Joanne L. Karrer 281-307 



Culture Experiments with Melamp- 



sora in Japan Takashi Matsumoto 309-316 



General Index to Volume VI 



317-320 



