El Número de Oro está presente en todas las plantas y significativamente en sus hojas, con alguna de sus expresiones básicas: él mismo ( F =1,618...), su inverso (1/ F=0,618...)  su cuadrado ( F²=2,618...) u otra relacionada, como Ö5.

Aquí se presenta una pequeña muestra de hojas de árboles de ornato urbano, con la clara expresión del canon de armonía de las proporciones.

The Golden Number is present in all the plants and significantly in their leaves, with some of its basic expressions: he himself (F=1,618…), its inverse one (1 F=0,618…) its square (F²=2,618…) or related other, like Ö5.

The propose solution for each tree is not only the possible one because being the Golden Number the director of the form of its leaves, can be found its manifestation of different form, depending on the calculation process that in each case is chosen.

It does not matter that a species characterizes by his heterofilia (phenomenon of polymorphism of the normal leaves), as it is the case of the Ginkgo Biloba; their different forms from leaves always will be determined by the Golden Number.

Here a small sample of leaves of urban ornato appears, with the clear expression of the canon of harmony of the proportions.

PLÁTANO OCCIDENTAL

platanus occidentalis

PLÁTANO ORIENTAL

platanus orientalis