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In page Magnoliaceae:

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The number of genera in Magnoliaceae is a subject of debate. Up to 17 have been recognized, including Alcimandra, Lirianthe, Manglietia, Michelia, Pachylarnax, Parakmeria, Talauma and Yulania.[1] However, many recent studies have opted to merge all genera within subfamily Magnolioideae into the genus Magnolia.[2] Thus, Magnoliaceae would include only two extant genera, Magnolia and Liriodendron.[citation needed]