I received this information from Jim West:
"The Plinia sp. (which i previously called Eugenia subterminalis) from
the ecuador amazon, with common names of mulchi, giant mulchi, and
shawi, has been identified by lucia kawasaki, from the Field Museum,
as Plinia inflata. originally described from amazonian brasil.
still no identification of the dwarf mulchi."
I have seeds of mulchi and giant mulchi right now. If anyone is interested PM me.