| class | snails and slugs and their relatives |
|---|---|
| class | fungi in which the hymenium is enclosed until after spores have matured: puffballs |
| class | snails and slugs and their relatives |
| class | ginkgos: in some systems classified as a class (Ginkgopsida) and in others as a subdivision (Ginkgophytina or Ginkgophyta) |
| class | gymnospermous flowering plants |
| class | plants having naked seeds not enclosed in an ovary |
| class | class of fungi in which no ascocarps are formed: yeasts and some plant parasites |
| class | liverworts: comprises orders Anthocerotales |
| class | liverworts: comprises orders Anthocerotales |
| class | all the yellow-green algae having flagella of unequal length |
| class | insects |
| class | hermaphroditic aquatic or terrestrial or parasitic annelids |