Abstract
Ånothera missouriensis is a species with flowers of maximum size. It, and certain related species1, extend from Missouri through Oklahoma, Texas and adjacent regions in the western States. It differs from ordinary species in being perennial and in developing enormous wings on the fruits. The seeds are also very much larger and fewer. Because of these characters it has been placed by some in a separate genus, Megapterium. Unlike most of the true Ånotheras, which have developed catenation of their chromosomes in meiosis, O. missouriensis was found to have seven free pairs2.
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References
Ann. Missouri Bot. Gard., 1, 401–404 (1914).
Hedayetullah, S., "Meiosis in Ånothera missouriensis". Proc. Roy. Soc., B, 113, 57–70 (1933).
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GATES, R. Self-Sterility in Ånothera. Nature 143, 245 (1939). https://doi.org/10.1038/143245a0
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DOI: https://doi.org/10.1038/143245a0
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