@blue23rose there shouldn't be two "citrina" in the NGA database, if you click on the 'Citrina' one, it goes to the species page in the AHS database. The AHS database system automatically and incorrectly converts a species epithet into a cultivar name with a capital initial letter and single quotes. Species names don't come under AHS jurisdiction, they come under the plant (botanical code of nomenclature whereas AHS is for cultivars only) but when the AHS database data entry was done initially, some were included because they were in the first check list as known daylilies. Professor Baroni definitely wasn't the hybridizer, he discovered and named the plant. I'll post in the NGA database forum about the duplication, good catch! Here's the post:
The thread "Hemerocallis citrina" in
Plant Database forum