In 1984 Law Yuh-Wu proposed 15 in A preliminary study on the taxonomy of the family Magnoliaceae, Acta Phytotaxonomica Sinica 22: 89-109; in 2004 even 16, in Magnolias of China.
1984年にはラウ (Law Yuh-Wu) が15属を A preliminary study on the taxonomy of the family Magnoliaceae, Acta Phytotaxonomica Sinica 22: 89-109 で、さらに2004年には16属を Magnolias of China で提起した。