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1 Leaves about as broad as long, (0-) 4 (-8)-lobed; fruit a lanceoloid aggregate of samaras (a “samaracetum”), each samara 2-seeded, tan, and indehiscent; [subfamily Liriodendroideae]
1 Leaves longer than broad, not lobed (in some species the leaves auriculate-cordate basally); fruit an ovoid, cone-like aggregate of follicles (a “follicetum”), each follicle dehiscing to reveal a scarlet seed, at first connected to the follicle by a thread-like strand; [subfamily Magnolioideae]