182 CLASSIFICATION OF THE MICRO-ORGANISMS. 



Fig. 19. Mucor mucedo. 



ripe sporangium. 



the same, represented as transparent; e, columella; s, the space 



filled with spores, 

 almost ripe sporangium, the membrane having been removed by 



artificial pressure. 



fruit hypha with naked columella (c) X 70. 

 an old mycelium thread which has formed an end cell which has 



become converted into a gemma X 350. 

 spore of Mucor racemosus which has sprouted in a sugar solution. 



to a germinating tube, and has formed spherical yeast-like cells 



(/) X 350. 



