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As a comment about Daylily (Hemerocallis 'Starry Day'), Polymerous wrote:

Despite what the AHS database says, going by its hybridizing behavior, STARRY DAY is a diploid, not a tetraploid. This was determined many years ago by various members of the snail mail polytepal (as the term was back then) round robins. I personally have confirmed this for myself, by various crosses against known diploids. (I still have a polymerous seedling which I have kept for many years, whose parentage involved STARRY DAY, and also the diploids SPARKLING OPAL and FOUR STAR.)

To compound and propagate the error, If you look at the three child plants listed for STARRY DAY, all of THOSE are also (imho) incorrectly registered as tetraploids. If you look at the other parents involved in the crosses - GIVE ME EIGHT, PURPLE PETALOID, FUCHSIA FOUR - those are all definitely diploid.

STARRY DAY's hybridizing behavior has been known for many, many years. I am surprised that its designation as "tetraploid" still persists in the AHS database - and now is unfortunately being propagated in this database.
Name: Suzanne/Sue
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Calif_Sue
Jul 10, 2013 10:44 PM CST

Plants Admin

Since the info is pulled from the AHS database, it's automatically entered as a Tet. But we can change it here and. I will do so now. Unfortunately, when we run an update, it may revert back.
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Polymerous
Jul 13, 2013 3:50 PM CST
Thanks for attempting the change, Sue.

(I wish that they would fix this error in the AHS database; this ploidy error has been known for years, and the knowledge has propagated beyond just us poly nuts. I seem to recall something in the Daylily Journal years ago (either a Round Robin excerpt or else one of the very few articles on poly daylilies) which mentioned this.)

The current avatar image is that of a volunteer daylily seedling showing cristation.
Name: Suzanne/Sue
Sebastopol, CA (Zone 9a)
Sunset Zone 15
Region: California Plant Database Moderator Roses Irises Clematis Garden Photography
Cottage Gardener Keeper of Poultry Hummingbirder Bee Lover Butterflies Birds
Image
Calif_Sue
Jul 13, 2013 4:52 PM CST

Plants Admin

Someone needs to contact someone in charge. I often email the registrar that's linked with each AHS entry, if you send him the details, he may be able to change it.
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Hand sewn wares and vintage finds in my Etsy store. Summer Song Cottage

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