Parents: = Blc. Bryce Canyon x Blc. Memoria Crispin Rosales - 1987

G2 Blc. Bryce Canyon = Blc. Nacost x Blc. Patricia Purves - 1973
G2 Blc. Memoria Crispin Rosales = Blc. Norman's Bay x Lc. Bonanza - 1959
G3 Blc. Patricia Purves = Blc. Norman's Bay x Blc. Hartland - 1961
G3 Blc. Nacost = Blc. Nacouchee x Lc. Memoria Walter Armacost - 1960
G3 Blc. Norman's Bay = Bc. Hartland x Lc. Ishtar - 1946

Brassolaeliocattleya Cornerstone - key crosses

Blc. Cornerstone 1987 = 0.28 C. dowiana, 0.09 C. warscewiczii, 0.04 C. warneri, 0.13 C. labiata, 0.07 C. lueddemanniana, 0.08 C. percivaliana, 0.08 C. mossiae, 0.06 C. trianaei, 0.02 C. gaskelliana, 0.04 C. mendelii, 0.06 B. digbyana, 0.05 L. purpurata