403

The direction of growth.

OF THE RAMIFICATIONS OF PLANTS.

The plants which spread very much have the angles of the spaces which divide their branches more obtuse in proportion as their point of origin is lower down; that is nearer to the thickest and oldest portion of the tree. Therefore in the youngest portions of the tree the angles of ramification are more acute. [Footnote: Compare the sketches on the lower portion of Pl. XXVII, No. 2.]

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

VII * X
Notebooks of Leonoardo da Vinci
VIII: Botany for Painters and Elements of Landscape Painting.
. . .
Classification of trees.
393
The relative thickness of the branches to the trunk.
394,
395
The law of proportion in the growth of the branches.
396,
397,
398,
399,
400,
401,
402
The direction of growth.
403,
404,
405,
406,
407
The forms of trees.
408,
409,
410,
411
The insertion of the leaves.
412,
413,
414,
415,
416,
417,
418,
419
Light on branches and leaves.
420,
421,
422
The proportions of light and shade in a leaf.
423
. . .