'Sui generis' is a Latin phrase which means

Solution (By Examveda Team)

'Sui generis’ is a Latin phrase which means a system of its own, therefore ‘unique’ in other terms.
In terms of Biology, it is used for species that do not fit into a genus that includes other species.
In horticulture, it is used by the plant breeders, to make treaties to adopt a sui generis system of protection for a specific plant type.