AFRICAN a.
to 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,…
AGAVE n.
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…
AIR VESSEL n.
, cell, duct, or tube containing or conducting air; as the air vessels of insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The air vessels of insects are called tracheæ, of plants spiral vessels.
ALBUMEN n.
Nourishing matter stored up within the integuments of the seed in many plants, but not incorporated in the embryo. It is the floury part in corn, wheat, and like grains, the oily part in poppy seeds, the fleshy part in the cocoanut, etc.
ALBUMIN n.
rum of blood, and is found in other animal substances, both fluid and solid, also in many plants. It is soluble in water is coagulated by heat ad by certain chemical reagents. Acid albumin, a modification of albumin produced by the action of dilute acids. It is not coagulated by heat. -- Alkali albumin, albumin as mod…