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A genus of malvaceous plants of many species, found in the torrid and temperate zones of both continents; -- called also Indian mallow.

e belts or zones into which Sir E. Forbes divides the bottom of the sea in describing its plants, animals, etc. It is the one furthest from the shore, embracing all beyond one hundred fathoms deep. Hence, abyssal animals, plants, etc.

Armed with prickles, as a plant.

Of, pertaining to, or resembling, the plant acanthus.

A genus of herbaceous prickly plants, found in the south of Europe, Asia Minor, and India; bear's-breech.

cken the natural or ordinary progression or process of; as, to accelerate the growth of a plant, the increase of wealth, etc.

the peculiarities of a foreign or strange climate; said of man, the inferior animals, or plants.

Used in salads; as, acetarious plants.

A name given to several species of plants; as, smallage, wild celery, parsley. [Obs.] Holland.

One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.

The herb wolfsbane, or monkshood; -- applied to any plant of the genus Aconitum (tribe Hellebore), all the species of which are poisonous.

A plant which has no cotyledons, as the dodder and all flowerless plants.

Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.

e quality of being acrid or pungent; irritant bitterness; acrimony; as, the acridity of a plant, of a speech.

roys others; also, a harsh or biting sharpness; as, the acrimony of the juices of certain plants. [Archaic] Bacon.

A plant of the highest class of cryptograms, including the ferns, etc. See Cryptogamia. The Age of Acrogens (Geol.), the age of coal plants, or the carboniferous era.

Increasing by growth from the extremity; as, an acrogenous plant.

or real existence as opposed to a possibility or possible existence. [Obs.] The seeds of plants are not at first in act, but in possibility, what they afterward grow to be. Hooker.

cum thapsus). -- Adam's needle (Bot.), the popular name of a genus (Yucca) of liliaceous plants.

A provisional name for a plant which has not had its flowers botanically examined, and therefore has not been referred to its proper genus.