Cattleya iricolor Cattleya iricolor Cattleya iricolor is a species of orchid native to the eastern montane forests of Ecuador and Peru. "Cattleya iricolor" is an epiphytic orchid with slightly compressed pseudobulbs with a single terminal leaf each. The leaves are narrow, up to 35 cm long and 3 cm wide. Flowers are very fragrant, creamy white or yellowish, 8 cm across in size, with long and narrow petals and sepals, pointy lip; up to 6 flowers per pseudobulb. "Cattleya iricolor" grows in Peru and Ecuador in montane forests of the eastern Andes at elevations of ca.1000 m. The conservation status of "Cattleya
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