With reference to the genus Aspergillus, phialide form directly on the vesicle; a biseriate phialide is supported by a metula.

in Aspergillus, a vesicle bearing a single layer of phialides

Having phialides that arise directly from the vesicle in species of Aspergillus.

Having one line or series; uniserial.

Occurring in a single series

Composed of a single row of cells.