When is a lemon tree not a lemon tree ...?

Seedlings in March this year I don't know if you recall back in March this year I mentioned that I found three tiny trees growing from seeds that I had planted on the farm at the end of last year.  After I had eaten the fruit, the seeds were just been shoved into the soil, with no attention at all and no water (save the rainfall of the past winter). This is what they look like now...