Cattleya aclandiae light rose to deep rose-purple. In cultivation, "C. aclandiae" prefers intermediate to warm orchid growing temperatures. Ample water is needed during periods of active growth; less water during the winter. High humidity is appreciated as long as adequate air circulation is present. Grow on cork bark or tree fern mounts or in pots with a coarse, free-draining growing media (fir bark or equivalent). Cattleya aclandiae Cattleya aclandiae ("Lady Ackland's cattleya") is a species of orchid from the genus "Cattleya", named in honor of Lady Lydia Elizabeth Ackland, wife of Sir Thomas Dyke Acland, 10th Baronet who was the first European
Basics of blue flower colouration This phenomenon we can observe in the morning glory (Ipomoea tricolor) and Japanese blue morning glory (Ipomoea nil) petals. During the flower development we can observe change of the flower colour form purple to blue. Morning glory has just one delphinidin type anthocyanin and the composition of it does not change during the flower development, but change of the colour is caused by increase of pH in vacuole of coloured cells from 6.6 in buds to 7.7 in fully matured flowers. During the early stage of development acidic pH is maintained by proton pumps, on the latter stage K+/H+ exchanger