×Hippeastrelia is the name used to designate hybrids between Hippeastrum and Sprekelia.
×Hippeastrelia bloomed in late May 2004 from seed started November 1998. The seed came from Bill Dijk who said it was a cross between a dwarf red unnamed Hippeastrum hybrid and Sprekelia formosissima. It has not bloomed again, even though the plants seem healthy. Photo by Mary Sue Ittner
×Hippeastrelia 'Red Star' is a variety I got from Jacques Amand maybe 7 years ago. It blooms reliably every year and tends to bloom after the main group of Hippeastrums. It also seems to be self-fertile, but I've never grown the seed on so I don't know what the F2 generation looks like. (I have donated it to the BX several times.) The color is solid; for some reason my digital camera kept wanting to throw in the yellowy-orange highlights. They're not there in the actual flower. Photo taken May 2004 by Lee Poulsen.