Question
I planted the seeds of the Jacaranda tree and of a sapote tree.  The labels were blown away by the wind, and now I don't know how to identify the young plants.  I will be transplanting them soon, but in certain locations in my yard.  Can you describe the leaves of these two plants so that I can distinguish the young seedlings?

Answer
There are four different kinds of Sapote/Zapote grown in South America: black (Diospyros), white (Casimiroa), red/green (Pouteria), and yellow (Mammea).  Since you didn't say which one, lets concentrate on identifying the Jacaranda leaf...

It is a delicate, multi-leaflet, fern-like leaf, with a "spray" of leaflets coming off of a central spine.  There is also a small ridge running down the middle of each of these tiny leaflets (there is another leaf that looks like it: the Albezia - but thats another story!)  

The Jacaradna will get 30 feet high by about 25 feet wide, depending on how you prune it sheen it is young.

The most popular Sapote is the white variety, or Casimiroa.  Its actually tougher than an Avocado, in terms of climate, and does well wherever lemons grow.  Its leaves are bigger, and clustered in groups of three to seven, and more richly green in color.  

This lovely senorita will eventually get up to 50 feet tall!

Hope it helps!  -Marc