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tion or system, and include the old red sandstone of Great Britain. They contain, besides plants and numerous invertebrates, the bony portions of many large and remarkable fishes of extinct groups. See the Diagram under Geology.

The plant which bears the fruit. Feed him with apricots and dewberries. Shak.

A plaster originally composed of the juices of several plants (whence its name), but now made of an oxide of lead and oil, and consisting essentially of glycerin mixed with lead salts of the fat acids.

A Linnæan class of plants whose stamens are united into two bodies or bundles by their filaments.

class Diadelphia; having the stamens united into two bodies by their filaments (said of a plant or flower); grouped into two bundles or sets by coalescence of the filaments (said of stamens).

The tendency of organs (as roots) of plants to assume a position oblique or transverse to a direction towards the center of the earth.

A tendency of leaves or other organs of plants to have their dorsal surface faced towards the rays of light.

A Linnæan class of plants having two stamens.

A genus of plants containing some of the most popular of cultivated flowers, including the pink, carnation, and Sweet William.

A pointed implement used to make holes in the ground in which no set out plants or to plant seeds.

A genus of herbaceous plants, with racemes of two-spurred or heart-shaped flowers, including the Dutchman's breeches, and the more showy Bleeding heart (D. spectabilis). [Corruptly written dielytra.]

The condition of certain species of plants, in which the stamens and pistil do not mature simultaneously, so that these plants can never fertilize themselves.

Successive division and subdivision, as of a stem of a plant or a vein of the body, into two parts as it proceeds from its origin; successive bifurcation.

A plant whose seeds divide into two seed lobes, or cotyledons, in germinating.

Having two cotyledons or seed lobes; as, a dicotyledonous plant.

A plant with netveined leaves, and monocotyledonous embryos, belonging to the class Dictyogenæ, proposed by Lindley for the orders Dioscoreaceæ, Smilaceæ, Trilliaceæ, etc.

A Linnæan class of plants having four stamens disposed in pairs of unequal length.

A genus of plants including the foxglove.

Walking on the toes; -- distinguished from plantigrade.

A Linnæan order of plants having two styles.