134 CLASSIFICATION OF THE MICRO-ORGANISMS. 



straight pointed branches which run downwards, and 

 to sporangia bearers which pass upwards, very like M 



Fig. 20A. Mucor rhizopodiformis. (After Lichtheim.) 

 Zeiss A, eye-piece 5. 



stolonifer, but 

 with shorter 

 sporangial stalks; 

 the egg - shaped 

 columella is 

 arched forwards 

 in a dome -like 

 manner, and di- 

 minishes in size 

 towards its base ; 

 spores colourless, 

 and only 5 6 p 

 in diameter. 

 M. corymbifer. 



Fig. 20s. Mucor rhizopodiformis after Mycelium whitish 

 rupture of the membrane of the sporan- 

 gium. (After Lichtheim.) g*&J \ Sporangia 



Zeiss E, eye-piece 2. bearers not pass- 



ing upwards at right angles, but stretched lengthways, 

 branched in an umbelliferous manner, and forming at 

 the end of the branches a number of grape-like, um- 

 belliferous, closely packed sporangia; the latter are 

 also colourless when ripe, rounded off at their apex, 

 jointed, top-shaped and gradually narrowing as they pass 



