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um 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.

The union of parts which are separate in other plants, or in younger states of the same plant.

A handsome butterfly (Pyrameis Atalanta) of Europe and America. The larva feeds on nettles. Admiral shell (Zoöl.), the popular name of an ornamental cone shell (Conus admiralis). Lord High Admiral, a great officer of state, who (when this rare dignity is conferred) is at the head of the naval administration of Great Br…

Growing to or on something else. "An adnascent plant." Evelyn.

A genus of plants of the family Ranunculaceæ, containing the pheasaut's eye (Adonis autumnalis); -- named from Adonis, whose blood was fabled to have stained the flower.

xtract, of which it is regarded as the active principle. It is used in medicine as a stimulant and hemostatic.

aving arrived at maturity, or to full size and strength; matured; as, an adult person or plant; an adult ape; an adult age.

aneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.

Having opposite leaves, as plants which have the leaves so arranged on the stem.

f development of the Rusts or Brands, an order of fungi, formerly considered independent plants.

A genus of plants, called also hardgrass.

A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.

ed to growing or existing in earth or water, or underground; as, aërial rootlets, aërial plants. Gray.

Related to, or of the nature of, aërobies; as, aërobiotic plants, which live only when supplied with free oxygen.

A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte.

any way; to attach physically. Should they [caterpillars] affix them to the leaves of a plant improper for their food. Ray.

o Africa. African hemp, a fiber prerared from the leaves of the Sanseviera Guineensis, a plant found in Africa and India. -- African marigold, a tropical American plant (Tagetes erecta). -- African oak or African teak, a timber furnished by Oldfieldia Africana, used in ship building. African violet African-American,…

Not having visible organs of reproduction, as flowerless plants; agamous.

A genus of plants (order Amaryllidaceæ) of which the chief species is the maguey or century plant (A. Americana), wrongly called Aloe. It is from ten to seventy years, according to climate, in attaining maturity, when it produces a gigantic flower stem, sometimes forty feet in height, and perishes. The fermented juice…