This photo of the Hawaiian endemic member of the family has a 7-lobed corolla and whorl of 7 stamens opposite the corolla lobes. In addition, a whorl of staminodes alternates with the petals. Note also the reddish hairs on the peduncle and other parts of the buds in the photo. Manilkara zapota, chicle. Notice the imbricated calyx, perhaps in two series, the white corolla, and the single style.
Reddish hairs are visible on the calyx and some of the other surfaces in the background.
The front view of the chicle flower in the right photo reveals 6 corolla lobes and additional appendages. The whorl of functional stamens attached to the corolla opposite the corolla lobes is also visible.