Charley, I see that you have added 4 images so far.
http://garden.org/plants/brows...
You found them by searching the database I assume. You can click on each one of the blue highlighted daylily name which takes you to the entry. Scrolling down a bit, on the left side, you'll see a blue button, "Add this plant to your list". Click on that to add it to your inventory. You then have to search the database for each one you own.
When you click on the Plant Database, you can limit the search to just the daylily database (since cultivar names can be shared by other plant genus) by clicking on 'Daylilies' under the "Visit our custom databases" box. From there, as you type in a cultivar name, it starts to pop up entries as you type.