Herbaria

3 clues
Mint preserves?
Preservers of plant specimens
Collections of plant specimens
Similar answers:
Abecedaria
Abecedarian
Actuarial
Actuarialtables
Adversarial
Agavemalaria
Agrarian
Agrarians
Airanaria
Alaria
Altoaria
Andiloveherb
Annamaria
Antiherb
Apiarian
Aquaria
Aquarian
Aquarians
Araucaria
Areaofanaria