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

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

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

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.

From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 by Humboldt, Alexander von

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

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