American Heritage® Dictionary of the English Language, Fourth Edition
- n. Botany The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed.
Century Dictionary and Cyclopedia
- n. In bot., a name originally proposed by Jussieu for the albumen or nutritive matter stored up in the seeds of plants; by later authors restricted to the albumen which is stored up outside the embryo-sac. Compare endosperm.
- n. The pericarp or even the integuments of a seed.
- n. biology The layer of nutritive tissue, derived from the nucellus, that surrounds the embryo of a seed in some angiosperms.
GNU Webster's 1913
- n. (Bot.) The albumen of a seed, especially that portion which is formed outside of the embryo sac.
- n. the nutritive tissue outside the sac containing the embryo in some seeds
- French périsperme. See peri- and sperm. (Wiktionary)
“Under this tissue is found with the Nos. 7, 8, and 9, the endosperm or perisperm, containing the gluten and the starch; soluble and insoluble albuminoids, that is to say, the flour.”
“Seeds in which endosperm or perisperm or both exist are commonly called”
“In some plants the nucellus is not thus absorbed, but itself becomes a seat of deposit of reserve-food constituting the _perisperm_ which may coexist with endosperm, as in the water-lily order, or may alone form a food-reserve for the embryo, as in _Canna_.”
“In the cocoa-tree it is the perisperm; and in the elais (as in the olive, and the oleineae in general) it is the sarcocarp, or the pulp of the pericarp, that yields oil.”
“Those by which the sulphate of iron is precipitated of a green colour, like the real cinchona, the bark of the white willow, and the horned perisperm of the coffee-tree, do not on this account denote identity of chemical composition; * and that identity might even exist, without our concluding that the medical virtues were analogous.”
“In the monocotyledonous plants there is no milky juice; but the perisperm of the palms, which yields such sweet and agreeable milky emulsions, contains, no doubt, caseum.”
“If our Alfonsia oleifera belong to the genus Elais (as Brown, with great reason believes), it follows, that in the same genus the oil is found in the sarcocarp and in the perisperm.] [* The Galibis or Caribis (the r has been changed into l, as often happens) are of the great stock of the Carib nations.”
“Elais (as Brown, with great reason believes), it follows, that in the same genus the oil is found in the sarcocarp and in the perisperm.)”
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