Psidium cattleyanum, commonly known as
Cattley guava,
strawberry guava or
cherry guava, is a small tree (2–6 m tall) in the Myrtaceae (myrtle) family. The species is named in honour of English horticulturist William Cattley. Its genus name
Psidium comes from the Latin
psidion, or "armlet." The red-fruited variety,
P. cattleyanum var. cattleyanum, is commonly known as purple guava,
red cattley guava, red strawberry guava and red cherry
(Wikipedia)