hypogeal

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hypogeal

(hī′pə-jē′əl) also

hypogean

(-ən) or

hypogeous

(-əs)
adj.
1. Living or occurring under the earth's surface.
2. Botany Of or relating to seed germination in which the cotyledons remain below the surface of the ground.

hy′po·ge′al·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

hypogeal

(of seed GERMINATION) characterized by the COTYLEDONS (2) remaining underground within the seed coat as the epicotyl lengthens, with the young shoot and root growing out from the seed. The broad bean (Vicia faba), for example, is hypogeal. Compare EPIGEAL.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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