Wanted:Citrus 'Ugli Fruit' or South African CitrusPampelmous

I have the following seeds for trade:
-Rare Kumquat Meiwa tree growing in my garden. The well known Kumquat has a sweet skin with a sour tasting fruit. Kumquat Meiwa has a sweet skin and sweet tasting fruit.
-Meyers Lemon. A rather large rather large, sweet tasting lemon. Also growing in my garden.
-Sour Oranges ( Citrus x aurantium). This fruit was bought.

I'm looking for the following fruit:
- A South African citrus found in Tongaat, Kwa Zulu Natal. Its flavour is a mix of grapefruit, tangerine & naartjie (mandarin). The skin is lumpy, very thick and easily peeled. The fruit is a wonderful mix of the above citrus fruits. Absolutely delicious. Its not a Pumillo (Citrus maxima) or a Citrus Pampelmoes (Citrus maxima?). These 2 fruits have a smooth skin. (but if a Citrus Pampelmoes was offered, I'd not turn it down)!
- Jamaican Citrus Ugli Fruit' seeds. (Citrus reticulata x paradisi). (A mix of grapefruit, orange and mandarin)
South African 'bush' guava. A bushy shrub rather than a tree, with round fruit +- 2-3" in width .
- There is another South African fruit I'd like to find but dont know the name of it. The fruit is oblong +- 2.25" long, a rather translucent skin colour with orange/yellow gelatenous fruit.
- Passiflora Mollissima seeds. (banana passiflora)

Bedouin, will the Kumquat Meiwa sprout true to seed? I have a seedling of P. mollissima- maybe we can arrange to meet halfway somewhere.

Fauna4flora, I have no clue if the seeds sproute true, as I've not planted any of the K. Meiwa seeds. I bought the tree already fruiting and am still enjoying these fruits, saving the seeds, of course!

Other than the Citrus Pumillo and one Avocado, all the fruit trees I have in the garden were bought as established trees from local (Florida) nurseries. I wish I could give you a clear answer, but I just dont know the answer! I dont know if the K. Meiwa was hybridized from the more tart fruit, or the other way around, or if its a true variety of its own.

Cheers,
Joanmary

OK. I'll do some research. One thing I do know, with few exceptions, (IE Key Lime) the very vast majority of citrus, especially hybrids with desirable qualities, do not breed true to seed. Hybrids are grafted onto other root stock. I have plenty of root stock grapefruits.....can you air layer? Nice to hear back from you, thank you. F4F

Yes, I air layer all the time. No longer deal with cuttings as its a waste of time and effort!