SACCHAROMYCES APICULATUS. 



403 



lemon-shaped cells may be either lemon-shaped (a, b, c, e, /) or 

 oval (a-c) ; it will also be noticed that the oval cells must 

 first form one or more buds before they are able to assume 

 the lemon-shape (e-/), and finally, that the lemon-shape of a 

 cell attained by budding (k, k', k"} may be lost again on the 



Fig. 96. Sa.ee/taruini/ces apiciUatug (after Hansen). Budding cells : a-a", a cell which in 

 the course of :ij hours developed a bud at its lower extremity ; b-b", a similar series, showing 

 the development of a bud at the upper extremity of the mother-cell, whilst a bud had l>een 

 previously formed at the opposite end ; c is a chain of cells, c' is the same three-quarters of an 

 hour later ; the lowest bud had assumed the typical form of the species like those above it, but 

 in the figure it is seen from the end, so that its longitudinal axis is at right angles to the plan 

 of the paper ; d-d", development during 1J houra ; e-e"', during 2J hours ; //"", during 3 hours : 

 in e-/it is seen that the oval cells first develop a bud and only subsequently assume the typical 

 lemon-shape ; g-m, abnormal cells : progressive development. 



formation of a new bud (k'"). Under other conditions the cells 

 may assume quite different forms, sausage-shaped, crescent- 

 shaped, like bacteria, etc. (g-m). Does any rule govern this 

 apparent confusion ? It has just been shown that the fungus 



