A few years ago I bought a 'Lemon Bizzaria' from the Italian nusery Tintori.
See towards bottom of page
http://www.homecitrusgrowers.co.uk/citrusvarieties/bizzarria.html
It has produced several small, corrugated Lemons.
Unusual, but not worthy of carrying the Bizzaria name.

I had decided that this plant was not the hoped for Lemon Bizzaria chimera.
However, this year it is carrying one small fruit that is very definitely a chimera.
Not yet ripe, I'm waiting impatiently to see if the outer layer will be orange or yellow.

Mike/Citrange

That is definitely an interesting fruit!

Very cool fruit!

Does anyone make custom chimeras using cell culture methods? I'd imagine one could take cells from two or more tissues, then let them come together in the bottom of a test tube to form tissue that would be grown out on agar, then transplanted to root. In that way you might be able to make all sorts of chimeras. If you took albino cells and added them to cells with chlorophyl I'd imagine you could produce varigated versions of anything? Not sure if one cell type would outgrow the other and end up eliminating it?

I guess this might be possible, but then it's probably a very expensive way to create something that only has an ornamental value...

I am not sure, if that would be possible.

I think the strongest cells would dominate and outnumber the other cells.

The natural chimeras seam to be the result of a graft and at a graft the cells MUST unite; in a cell culture, they don´t have to.

I have exactly the same story with the same variety!
First fruit "bizzaria", not ripe.

Nice !

The (Bitter)Orange seams to dominate.

I don't think so but we just have to wait to know.
There are two Bizzarria, one is common with round fruits and long petioles slightly winged the Aurantium and one is rare with lemon shaped fruits and short petioles that aren't winged. The lemon.
As you can see on the pictures the one from Mike is the lemon.

Didn´t you say it is the same ?

I know by experience, that the top layer is the Orange.
The peel is typically.
Bésides you see on the inside layer the rips of the corrugated Lemon.

Well done Sylvain. That is a very nice fruit.

Does "chimera" show in the fruit only or does it also show in other parts of the plant?

Some times it shows only in the fruits.

If it shows in the leafes, then only punctually like white dots.

For isntance at Swiss Orange (Citrus aurantium Fasciata) it shows on new shoots only.
Often just some white dots in vertically lines, sometimes so much that it looks like normal variegation, but when look near you see it consists of little dots of 1-2 mm.
When the leaf grows and matures, these dots disapear slowly.

At first sight there is nothing on the rest of the plant, but I can find some "freaky" leaves that are asymmetric and with most imagination I can guess some strips on the branches. That's all.