If you send a pic to the seed sourceman (is that a word?), also send him a photo of the true ones, so he can compare and know that you are not just nuts. For the unknown, send pics of every part of the plant if you have them. Closeups of leaves, leaf undersides, nodes(where the leaf connects to the stem, flower stem.
This for all!
Everyone thinks that the flower tells all, but in fact usually not if you want an iron clad ID.