What plant containing single-seeded, blue-black drupes is part of the Manilkara zapota family?
Manilkara zapota Manilkara zapota, commonly known as the sapodilla ( ), is a long-lived, evergreen tree native to southern Mexico, Central America and the Caribbean. An example natural occurrence is in coastal Yucatán in the Petenes mangroves ecoregion, where it is a subdominant plant species. It was introduced to the Philippines during Spanish colonization. It is grown in large quantities in Pakistan, India, Thailand, Malaysia, Cambodia, Indonesia, Bangladesh and Mexico.
Billardiera heterophylla Billardiera heterophylla (formerly "Sollya heterophylla") is a species of flowering plant in the family Pittosporaceae, known by the common name bluebell creeper. It is native to Western Australia, but is grown as an ornamental plant in appropriate climates worldwide. It can sometimes be found growing in the wild as an introduced species or garden escapee, for example in other Australian states and in California, where it is popular in landscaping. It is sometimes considered a weed.