The name would be Lovoa trichilioides. Family: Meliaceae.
Juglans nigra is the scientific name for a walnut tree
A white walnut tree is commonly known as a butternut tree. Its scientific name is Juglans cinerea.
Juglans regia
Walnut is the common name, Juglans is the scientific name, see link below.
Juglans regia
The name would be Juglans regia. Family: Juglandaceae.
The name would be Endiandra palmerstonii. Family: Lauracae.
Family : Arecaceae (=Palmaceae) Genus : Areca Species : catechu
Juglansnigra, I found it on http://faculty.ucc.edu/biology-ombrello/POW/black_walnut.htm
The name would be Pterygota spp. Family: Sterculiaceae.
The name would be Cordia spp. Family: Boraginaceae.
The name would be Pterocarpus soyauxii. Family: Leguminosae.