Thanks for all the precious info on this fantastic cultivar, Francisco. The couple of figs i have developing are from the 'Quarteira' you sent me a couple of years ago.
I have the 'Quarteira Velha' you sent me last September grafted in the same type of root stock. The grafts are 1 meter appart.
I presume the scions did not come from the same tree so, in the next couple of years, i will see if they show any differences over here.
In your photos of Quarteira, over the years, we can see a color difference, with 'Quarteira Velha' having a much more golden color and the 'regular' being a bit greener, but as you say, that doesn't mean they are different strains, it could just be other factors.
Ed,
I agree with Francisco. The fig you mentioned with the red/pink eye is probably 'Olho de Passarinho', 'Ull de Perdiu' in catalán. Translated, it means 'Bird's eye' or 'Partridge eye'. Here's a description in the website of Galgoni:
http://www.galgoni.com/ENG/Fotos_Maxi/001.htm
The problem is, as he says, any green fig with a marked red eye, can have that name in Spain or Portugal and they can be different cultivars. Even the one i found on my fig prospecting had a red eye (not visible in the photos i took)