Location: Western Cape, South Africa

Tree: Unknown, previously suspected grafted Meyer lemon tree

TLDR: Do these seem like the same type of fruit at different stages of ripening, or a combination of different fruits, like root stock and grafts?

Hi everyone,

These fruit were all taken from the same tree that came with my house that I’ve had for \~2 years - the tree is very old, not well taken care of and has clear graft marks (I could upload a pictures of the tree, but I’m hoping the fruit are enough). Despite the neglect and various pests (the ants on the property seem to be expert farmers) and what looks to be fungi, the tree produces a lot of fruit and some of it is very nice - I haven’t consistently been harvesting though and never looked at which specific branches I took from as there some clear splitting in the branches towards the bottom of the tree, but they have tangled at the top due to the years of neglect and not being pruned well.

I’ve noticed inconsistencies in the quality/size/texture of the fruit and even branches, but chalked it up to the neglect and all other things mentioned. More recently I’ve been wanting to revamp the garden and pruned a lot of this particular “lemon” tree - clearly not all of the fruits are ripe yet, but I was in a bit of a “get rid of everything in my path” frenzy and quite literally ripped branches off (dead and alive) so I kept the unripe fruit. 

I thought the last picture looked interesting and uploaded it to a subreddit here, they didn’t find it as interesting as I did ☹️ none the less, it made me consider they could be different fruits and cut into all of them to find some of them look like limes, there is a lime tree not far from the “lemon” one and the mature fruit on that tree looks and taste similar to the small yellow fruit from the “lemon” tree, the big ones/ones why the scaly skin are bitter and dry, I think this could be root stock, and the others are a mixture of ripe and unripe lemons.

The first photo is just of the fruit cut in half and in the second and third I tried to separate the green from the yellow fruit - idk u guess maybe I thought that would help 🤣

Any assistance would be appreciated but my best guess is:

A. These are a mixture of root stock and grafts: lemons (meyer?) and limes (no clue which).

B. Some hybrid tree with fruits in different stages of ripening (though it seems to me there are at least two different types… still I could be wrong).

Thank you :) 

Are these a mixture of different citrus fruits?