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| Penaea | |
|---|---|
| |
| Penaea mucronata | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Penaeaceae |
| Genus: | Penaea L.[1] |
| Species | |
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See text | |
| Synonyms[2] | |
| |
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.[3]
- ^ Sp. Pl.: 111 (1753)
- ^ Cite error: The named reference
31880-1was invoked but never defined (see the help page). - ^ Kordyum, Elizabeth L.; Mosyakin, Sergei L. (2020). "Endosperm of Angiosperms and Genomic Imprinting". Life. 10 (7): 104. Bibcode:2020Life...10..104K. doi:10.3390/life10070104. PMC 7400472. PMID 32635326.