Here are two Selections of bulbocodium style hybrids. Both involve a highly symmetric, frilled form of N. bulbocodium romieuxii. The fluting or frilling is apparent in both photos and is quite pleasing.
As Harold mentioned, splendid, striking things in bloom for the holidays.
Steve
PS – The N. b. albidus zianicus lutescens info was copied directly from the late Ed Zinkowski’s label. Not certain what this really is.