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Of or pertaining to a very large natural order of plants (Rubiaceæ) named after the madder (Rubia tinctoria), and including about three hundred and seventy genera and over four thousand species. Among them are the coffee tree, the trees yielding peruvian bark and quinine, the madder, the quaker ladies, and the trees be…

The rubiaceous shrub Chicocca racemosa, of the same region.

A genus of small rubiaceous herbs, having tetramerous salveform blue or white flower. There are about twenty species, natives of North America. Also, a plant of this genus.

The root of a Brazilian rubiaceous herb (Cephaëlis Ipecacuanha), largely employed as an emetic; also, the plant itself; also, a medicinal extract of the root. Many other plants are used as a substitutes; among them are the black or Peruvian ipecac (Psychotria emetica), the white ipecac (Ionidium Ipecacuanha), the basta…

yeing red, and formerly was used in medicine. It is cultivated in France and Holland. See Rubiaceous.

A genus of rubiaceous trees and shrubs, mostly East Indian, many species of which yield valuable red and yellow dyes. The wood is hard and beautiful, and used for gunstocks.

Guinea, or Sierra Leone, peach, the large edible berry of the Sarcocephalus esculentus, a rubiaceous climbing shrub of west tropical Africa. -- Palm peach, the fruit of a Venezuelan palm tree (Bactris speciosa). -- Peach color, the pale red color of the peach blossom. -- Peach-tree borer (Zoöl.), the larva of a clea…

A tropical genus of rubiaceous shrubs which often have brilliant flowers.

eiades. -- Seven wonders of the world. See under Wonders. -- Seven-year apple (Bot.), a rubiaceous shrub (Genipa clusiifolia) growing in the West Indies; also, its edible fruit. -- Seven-year vine (Bot.), a tropical climbing plant (Ipomoea tuberosa) related to the morning-glory.

kind of sumac (Rhus succedanea) of Japan, the berries of which yield a sort of wax. (c) A rubiaceous tree (Elæagia utilis) of New Grenada, called by the inhabitants "arbol del cera." -- Wax yellow, a dull yellow, resembling the natural color of beeswax.

A low, shrubby, rubiaceous plant (Morinda Royoc) growing along the seacoast of the West Indies. It has small, white, odorous flowers.