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Penaea
Also called Gluglues, Naughty Crosses
Penaea is a genus of flowering plants in the family Penaeaceae, found in southern South Africa. They have an unusual type of embryo sac development; after two rounds of mitosis, four nuclei are formed at each pole, leading to a mature embryo sac containing four polar groups each with three cells. When found in other taxa, these embryo sacs are termed Penaea-type.
Text excerpted from the Wikipedia article Penaea by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
