Euph. Michael Tibbs (50.0%)
( Euph. guineensis × Euph. speciosa )
Photo: Karsten Wodrich

Euph. Douglas McMurtry (50.0%)
( Euph. ovalis × Euph. speciosa )
Photo: Karsten Wodrich

Euph. Mem. Bill Mincher (50.0%)
( Euph. tuberculata × Euph. speciosa )
Photo: Andrew Monfoort