Hi Jay,
Apparently that was the article I read. I had already given it a thumbs up! Thank you much for the link, so I could review it. I'll have to read ot again in a few months - it usually takes 3 readings to get all the information to stick in the long-term memory bank.
It is good to know all five are commercially available. I would like to get H. dasycalyx, laevis and grandiflorus seeds, just to see where all the cultivars get their characteristics from. I have the other two already.