Thus , Magnoliaceae would include only two genera , Magnolia and Liriodendron .
However , many recent studies have opted to merge all genera within subfamily Magnolioideae into the genus Magnolia .
Magnoliaceae would include only two genera , Magnolia and Liriodendron .
However , many recent studies have opted to merge all genera within subfamily Magnolioideae into the genus Magnolia .