form class

form class (plural form classes)

1. (taxonomy) A collection of organisms that is given formal recognition at the rank of class with a taxonomic name, but which is known to be an artificial group rather than a natural one.

   All fungi for which sexual reproduction is unknown are assigned to the form class Deuteromycota until such reproduction is discovered in that species.

2. A form room, a homeroom.

• form genus
• form taxon