Whoooa! That's some deep reading, Glen. I had to stop reading to comment here because it is a long article. But I am enjoying it even though I don't understand a lot of it.
I thought one statement was interesting, "While the genus itself is easily delimited (Dahlgren et al. 1985), the taxonomy of the genus remains rather confused and there has been no recent formal monographic treatment of the genus." I didn't realize that there was question about Hemerocallis' classification.
Back to the article now. I saw some pictures so I want to see what they are.
Thanks for posting the link!