How To Write Scientifici Name With Cultivar . The system of nomenclature used today is based on the binomial system of nomenclature, developed by linnaeus in the late 1700's. Can be indicated by an x, also not italicized. PPT Naming Plants Scientifically PowerPoint Presentation, free from www.slideserve.com Scientific names, on the other hand, are unique plant and animal names used across the world by scientists and other professionals regardless of the language they speak or write, because scientific names are always latin or latinized words. Fragaria 'cambridge favourite', fragaria ananassa. In this, homo is genus which includes early and modern humans and sapiens is species specific for humans.