The Orchid Doctor Articles under the Heading Pigmentation

Pigmentation Comments
PIGMENTATION: In Flowers They are either (a) sap-soluble or (b) sap-insoluble and are responsible for specific colors; (a) Anthocyanins (Red, blue, violet) Flavones (Yellow);and (b) Chloroplasts (contain chlorophyll, and give green and ye 1low colors); Carotenoids (Yellow, orange and possibly red). A78-230; OD69-127+ -- purple leaves = may be a tanning reaction due to high light; cattleyas. A78-812; F80-54 0
PIGMENTATION: Reddish Pigment in Leaves Anthocyanins in leaves gives a clue to their living in quite strong light; the pigmentation is a protective device againt burning. A74-9 0

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