PERISPORACE^E 



127 



1. A filament grows upward. At its apex a septum 

 forms, then a globular swelling appears "sporagium" 

 (d). This possesses a definite membrane. 



2. From the septum grows a club-shaped mass of 

 protoplasm " columella " (c) . 



FIG. 77. Mucor mucedo. 



FIG. 78. Aspergillus 



3. The rest of the contained protoplasm breaks up 

 into " swarm spores " (e) . 



Finally the membrane ruptures and spores escape. 



Perisporaceae. Aspergillus (Fig. 78). Note the 

 branching filaments "mycelium" (a). 



FIG. 79. Penicillium. 



Note the asexual reproduction. 



i. A filament (6) grows upward, its termination be- 

 comes clubbed ; on the clubbed extremity flask-shaped 

 cells appear " sterigmata " (c) . 



