413

The insertion of the leaves.

A DESCRIPTION OF THE ELM.

The ramification of the elm has the largest branch at the top. The first and the last but one are smaller, when the main trunk is straight.

The space between the insertion of one leaf to the rest is half the extreme length of the leaf or somewhat less, for the leaves are at an interval which is about the 3rd of the width of the leaf.

The elm has more leaves near the top of the boughs than at the base; and the broad [surface] of the leaves varies little as to [angle and] aspect.

[Footnote: See Pl. XXVII, No. 3. Above the sketch and close under the number of the page is the word ‘olmo’ (elm).]

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,
424,
425,
426
Of the transparency of leaves.
427,
428,
429
The gradations of shade and colour in leaves.
430,
431,
432,
433
. . .