V! 



CONTENTS. 



Section XIV. Life i^'story and Variability of the Saeeharo- 

 myeetes. Classification of the Saeeharomyeetes and 

 Sehizosaeeharomyeetes. 



BY ALBERT KLOCKER. 



CHAPTER LIII. THE LIFE HISTORY OF SACCHAROMYCETES 

 IN NATURE. 



PAGE 



271. Fundamental Re- 

 searches on the Life 

 History of Saccharo- 

 mycetes . . . 249 



272. Later Experience on 

 the Life History of 

 Saeeharomyeetes 



PAGE 



253 



CHAPTER LIV. VARIABILITY AND HEREDITY IN SACCHARO- 

 MYCETES. 



273. Temporary Variations . 257 



274. Hansen's Researches on 



Asporogenation. The 

 Production of Con- 

 stant Varieties by 

 Transformation jOo 



275. Hanson's Experiments 

 with Top and Bottom 

 Yeast 



276. Practical Results of the 

 Researches on Varia- 

 tion Occurrence in 

 Brewing Practice 



CHAPTER LY. CLASSIFICATION OF THE FAMILIES SACCHARO- 



MYCETACE^E AND SCHIZOSACCHAROMYCETACE^E. 



277- Introduction. Division 

 of the Family Sac- 

 charomycetacese . 270 



278. The Genus Saccharo- 

 myces, with the Gen- 

 era Hansenia and 

 Torulaspora . . 274 



^79. The Genera Zygosac- 

 charomyces,Saccharo- 



mycodes, and Sac- 

 charomycopsis . . 



280. The Genera Pichia and 

 Willia. The Doubtful 

 Genera Monospora 

 and Nematospora . 



281. The Family Scliizosac- 



284 



287 



293 



Section XV. Morphology and Classification of Certain Tech- 

 nically Important Higher Aseomyeetes an 3 Allied Forms. 



CHAPTER LVI. MORPHOLOGY AND SUBDIVISION OF THE 

 FAMILY ASPERGILLACE.E. 



FY TROF. DR. CARL WEHMER. 



282. Systematic Position and 

 Classification of the 

 Aspergillaceae . . 296 



283. The Genus Aspergillns 300 



284. Aspergillus Species with 



Simple Steriginata . 308 



285. Aspergillus Species with 

 Branched Sterigmata 



(Sectio Sterigmato- 



cystiiis) . . .321 

 286. The Genus Penicillium 328 

 287. The Species of the 



Genus Penicillinm . 333 

 288. The Genera Citromyces 



and Allescheria ^46 



