ABSTRACT
Light microscopic observations of nuclear behavior (karyology) during conidiogenesis in the long, narrow phialides of Gliomastix felina are presented and discussed. Uninucleate phialides and conidia are characteristic of G. felina. Nuclei occupied a submedian position in phialides. After nuclear division, separation of small, intensely stained daughter nuclei resulted from migration of the distal one of each pair toward phialide apices, with the subsequent nucleation of conidial initials. Karyologic events described herein are compared with additional published studies of both phialidic and non-phialidic species.