Botanical Illustration

The Fibonacci sequence can be counted on the spirals of plants. Spirals appear in fruits and seed heads. Examples are sunflowers, pinecones and pineapples. You can count the spirals in each direction on a pineapple; the usual arrangement is eight in one direction and thirteen in another, both Fibonacci numbers.

Many plants show the Fibonacci series in the arrangement of leaves around a stem. Look down on a plant you will see that the leaves are arranged so that they do not overshadow the leaves below.

An old book was carried for immediate flower pressings