perisperm

British  

/ ˈpɛrɪˌspɜːm /

noun

1. the nutritive tissue surrounding the embryo in certain seeds, and developing from the nucellus of the ovule

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Other Word Forms

• perispermal adjective

Example Sentences

Germination is often slower where there is a store of available food in the perisperm, or in the endosperm, or in the embryo itself, than where this is scanty or wanting.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" by Various

This perisperm covers an exalbuminous embryo formed almost entirely of two thick, greenish yellow cotyledons having a strong taste of legumine.

From Scientific American Supplement, No. 613, October 1, 1887 by Various

When either endosperm or perisperm or both are present the seed is said to be albuminous.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

Seeds in which endosperm or perisperm or both exist are commonly called albuminous or endospermic, those in which neither is found are termed exalbuminous or exendospermic.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 by Various

G, section of an unripe seed. em. embryo. p, perisperm, × 2.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Campbell, Douglas Houghton