"Petiole" Quotes from Famous Books
 ... is a true Dock, and belongs to the "many-kneed," buckwheat order of plants. Its brilliant colouring is due to varying states of its natural pigment (chlorophyll), in combination with oxygen. For culinary purposes the stalk, or petiole of the broad leaf, is used. Its chief nutrient property is glucose, which is identical with grape-sugar. The agreeable taste and odour of the [160] plant are not brought out until the leaf stalks are cooked. It came originally from the Volga, and has been grown in this country since 1573. The ...
— Herbal Simples Approved for Modern Uses of Cure • William Thomas Fernie
... we meet with it on a spot on which no rain has yet fallen, we see that the young ones twist their leaves round during the heat of the day, so that the edge only is exposed to the rays of the sun; they have then a half twist on the petiole. The acacias in the same circumstances, and also the mopane ('Bauhania'), fold their leaves together, and, by presenting the smallest possible surface to the sun, simulate ...
— Missionary Travels and Researches in South Africa - Journeys and Researches in South Africa • David Livingstone
... aquatic plant, with leaves solitary, terminal, floating on the water, dentate, glabrous, broad, deeply cleft at the base, with a very long petiole. Flowers solitary, persistent in the ripe fruit, oval. Stamens indefinite ...
— The Medicinal Plants of the Philippines • T. H. Pardo de Tavera
... slowly bend downwards, remaining for a short time at right angles to the stem, and then become so much arched downwards that the blade of the leaf points to the ground with its tip curled inwards, so that the whole petiole and leaf together form a hook. They are thus enabled to catch hold of any twig with which they may be brought into contact by the revolving movement of the internodes. If this does not happen, they ...
— The Movements and Habits of Climbing Plants • Charles Darwin |
