Exactly. Cross a yellow Clivia with red, or orange, or the other kind of yellow, and the seedlings are orange. Yellow tends to be recessive in most flowers that have red or orange colors in some species or varieties. Yellow results from a double genetic blockage (homozygous) of the biosynthetic pathway that produces the anthocyanin red pigments. Cut off red, and you are left with yellow or white. People are checking out the heredity of peach colors in Clivia now. Several peach clivias, like Victorian Peach, Tessa, and Sunrise Sunset, give peach offspring when crossed with each other. Other peaches may not. I have some seedlings that are going to bloom in the next few years that ought to help understand the peach genes in Clivia. In Hippeastrum, papilio has a very strong genetic influence on its hybrid offspring. Some striped Hippeastrum and patterned types give simple solid red flowers when crossed -- unlike papilio, their pattern genes are recessive and the plants default back to plain red when crossed. E.g., cross Hippeastrum lapacensis (cream flower with fine red pinstripes) with H. nelsonii (large cream or green throat, small solid red tips to petals and sepals) and the offsprings' flowers are plain solid red, with a small green throat. The patterns are lost when heterozygous. The diploid species are likely to be simpler to sort out than hybrids of the tetraploids. Jim Shields At 05:33 AM 4/12/2010 -0700,Dell wrote: >I believe that yellow may be recessive,but it is certainly co-linked with >red to produce orange,which seems to be the dominant color in my 25 years >of breeding Hippeastrum.Years ago I selfed Pasadena, a tetraploid double >hybrid,having red with white stripes coloration. The majority of the >seedlings were reddish orange or orange. Del-- ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA