Name: Elaine Sarasota, Fl The one constant in life is change
A sweet friend of mine was asking what this fruit could be. She said it came off a large tree. She said the center is spongey with seed-like formations on either side of the center, also kind of soft. She said it smelled citrusy. Please excuse the out of focus pics.
Elaine
"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
I've looked in some books and on the web and it would be easier if this was a tropical fruit as I found one or two similar, but unless your friend got it from a supermarket that's not likely in Maine
I wondered about pawpaw but didn't think it looked right inside although this picture of an unripe one looks closer: