Strobilus

noun

1. A cone-shaped fruiting body in general
2. More particularly a more-or-less cone-shaped fruiting body of any of various gymnosperms and vascular sporophytes. According to source and context it might refer to a structure bearing either seeds or spores, that might or might not be seen as an infructescence; usage has varied arbitrarily among authors during the last two centuries.
3. A layered reproductive stage in jellyfish, in which the swimming medusa form is produced.