Not an accepted name (status: unknown). The accepted name is Heteromeles arbutifolia (Lindl.) M.Roem., 1847.

Heteromeles arbutifolia var. macrocarpa (Munz) Munz, 1847 6% complete

No common name

Fam. Nat. Syn. Monogr. 3: 105 (1847)

There is no corrections for Heteromeles arbutifolia var. macrocarpa yet.