ORDER SACCHAROMYCETALES 



343 



Fig. 112. Saccharomycetales, Family 

 Saccharomycetaceae. Saccharomyces cere- 

 visiae Meyen. (A) Cell before beginning 

 of formation of bud. (B) Bud formed but 

 still without nucleus. (C) Nucleus push- 

 ing out into bud. (D) Nucleus divided, 

 with one daughter nucleus in each cell. 

 (After Guilliermond : Ann. Mycolog., 

 2(2):184-189.) 



Fig. 113. Saccharomycetales, Family Saccharomycetaceae. Saccharomyces para- 

 doxus Batsch. (A) Two ascospores (a and b) have, without conjugation, formed systems 

 of budding cells (1-4) with haploid nuclei. (B) Cells 2 and 3 from ascospore a have 

 conjugated and formed bud (a) with diploid nucleus, and there has occurred further 

 formation of haploid buds in the system from ascospore b. (C) Cells 2 and 5 from 

 ascospore b have conjugated and produced the diploid buds (a), (b), and (c), and 

 further diploid buds (b) and (c) have developed from the previously formed zygote. 

 (Courtesy, Guilliermond: Ann. fermentations, 2:129-151, 257-277.) 



