Cattleya purpurata spike. The flowers are long-lasting and fragrant. "Cattleya × elegans" is a hybrid orchid with a formula hybridae "Cattleya purpurata" (Lindl. & Paxton) Van den Berg (2008) × "Cattleya tigrina" A.Rich. (1848). It is found in South and South-East Brazil. Cattleya purpurata Cattleya purpurata, known in the past as Laelia purpurata and Sophronitis purpurata, is native to Brazil where it is very popular among orchid growers. It is an epiphyte that is found in the canopy of tall trees near coastal areas, in the Brazilian states of Rio Grande do Sul, Santa Catarina and São Paulo. The orchid favors bright
Basics of blue flower colouration Basics of blue flower colouration Blue flower colour was always associated with something unusual and desired. Blue roses especially were assumed to be a dream that cannot be realised. Blue colour in flower petals is caused by anthocyanins, which are members of flavonoid class metabolites. We can diversify three main classes of anthocyanin pigments: cyaniding type (two hydroxyl groups in the B-ring) responsible for red coloration, pelargonidin type (one hydroxyl group in the B-ring) responsible for orange colour and delphinidin type (three hydroxyl groups in the B-ring) responsible for violet/blue flower and fruits coloration. The main difference in the structure