The production of conidia and the development of the sporogenous cell are depicted in Fig. VI.2.

The conidial primordium is a bud that appears generally at the tip of the conidiophore. The conidium has a wall continuous with that of the conidiogenous cell, and it is therefore holoblastic. It remains single, in the sense that:

— no other conidium can be produced on the same vegetative point;

r\ A R ' h Of 'Q5A

Fig. VI.2. Development of the sporogenous cell of Sympodulosporae up to-the production of conidia.