Juglans regia
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.
The name would be Juglans regia. Family: Juglandaceae.
The name would be Endiandra palmerstonii. Family: Lauracae.
The name would be Lovoa trichilioides. Family: Meliaceae.
The English name for the South American petiribi tree is the "Brazilian walnut" or "Brazilian nut tree." Its scientific name is Bertholletia excelsa. This tree is known for its large, edible seeds, commonly referred to as Brazil nuts, which are highly valued for their nutritional content.
This year and last year my English walnut tree bore no fruit. My black walnut tree was prolific both years.
Family : Arecaceae (=Palmaceae) Genus : Areca Species : catechu
Juglansnigra, I found it on http://faculty.ucc.edu/biology-ombrello/POW/black_walnut.htm
If you mean the Butternut tree ther are two. One is Juglans cinerea of the walnut family. There is also Caryocar nuciferum a Brazillian tree with hard durable timber.