Oak Apple Gall

Incidental planet, Biblical metonym for bitterness, a green anti-fruit filled with air in citrus-like sections & harboring a larva at its core. The oak’s response to a bit of foreign matter is not unlike the oyster’s: wall it off inside a solid tear-drop. Come fall, it turns red but doesn’t rot, lapsing instead into tough brown paper, a manuscript in the round that whelps a wasp.