The Da Vinci Notebooks at sacred-texts.com
A classification of trees according to their colours.The trees in a landscape are of various kinds of green, inasmuch as some verge
towards blackness, as firs, pines, cypresses, laurels, box and the like. Some tend to yellow such as walnuts, and pears, vines and verdure. Some are both yellowish and dark as chesnuts, holm-oak. Some turn red in autumn as the service-tree, pomegranate, vine, and cherry; and some are whitish as the willow, olive, reeds and the like. Trees are of various forms ...