Vol. I: VIII. Botany for Painters and Elements of Landscape Painting: 393.
The Da Vinci Notebooks
Classification of trees.Small, lofty, straggling, thick, that is as to foliage, dark, light, russet, branched at the top; some directed towards the eye, some downwards; with white stems; this transparent in the air, that not; some standing close together, some scattered.