Snowy has been working on a coding system for the project. It looks great to me so far, so I am posting it here for everyone to discuss.
Here's how the coding system will work.
Example: S. purpurea ssp. purpurea f. heterophylla, Walton Co. FL.
Using the species name, we can get the first part of the code, SPPH.
The postal code of the state of origin will be the next two letters. In this case it would be: FL.
A three digit number would then be assigned to the clone. This number could then be looked up in a national database for information about that clone. Such information would be stuff like: The origin, who collected it and when, how much was collected, plants that were nearby (in case hybrid seed is accidentally collected, we'll have an idea of what the other parent was) and any special characteristics of the plant (light or heavy venation, pubescent, etc.).
The final code that would go on the tag should look something like
A non-complete lettering system can be found here
And some example database entries (fictional) can be found here.
If you have any corrections or additions that need to be made, let me know and I will correct them. The next step after both of your approvals would be to vote!