As we have tried to show in the introduction, these groups have in com­ mon a typically blastic conidiogenesis, that is, the conidial primordium is produced by a process of budding (Fig. 111.1).

Of course, conidiogenesis is also blastic in the Phialidae. But in these, the conidia are produced inside the neck of the conidiogenous cell, while the Blastosporae produce external spores (see holoblastic and enteroblastic conidiogenesis, Fig. 1.6).