It may be two different sources. One is the correct one.
I grow the Persian mulberry, look at my list at the first post which I updated today. I just don't have any fruits yet, but the person who gave me the cuttings says its got the best flavor of all his mulberry. He lives in San Diego and get fruits on his tree, but mine does not have any flowers or fruits yet. Do you grow the Persian?
Yes, a Persian friend gave me a small plant propagated from her tree 2 years back. It's growing very slow. Last Fall I took a scion from it and grafted onto a branch of my Pakistan. The graft is starting to leaf out now. I heard Persian mulberry supposes to have the best, but create a mess when dropping on the ground since it is extremely juicy