i88 



RESEARCHES ON FUNGI 



A spore of 8. roseus on an almost exhausted culture medium 

 behaved like a yeast cell in that it produced first one sterigma and 



B 



3Ei 



H 



Fig. 94. — Sporobolomyces roseus. A yeast cell on malt-agar, seen from above, 

 which produced in succession : (1) a sterigma and spore, as shown at A-C ; 



(2) a second spore on the same sterigma as the first spore, as shown at D-F ; 



(3) two buds, i.e. two new yeast cells, as shown at G-J ; and, finally, (4) a 

 second sterigma and a third spore, as shown at K-M. Drawn by A. H. R. 

 Buller and Ruth Macrae. Magnification, 2100. 



spore (Fig. 93, A-D), then a second sterigma and spore (E-G) and, 

 finally, a third spore on the first sterigma (H-J). 



Another S. roseus yeast cell produced first of all a sterigma which 

 developed and discharged two spores in succession (Fig. 94, A-G), 

 then two buds one at each of its ends (H-J) and, finally, a second 

 sterigma which developed a spore (K-M). In this instance the 



