It’s interesting to note that an Arum, with the larges inflorescence in the world, and a Stapelia, with one of the largest flowers in the world both smell like carrion. That having been noted, it is also true that some Arums have modest inflorescences, and not all smell bad; also some Stapelias have small flowers and some even have a pleasant perfume. It’s just that the grossest are gross, and that may not be coincidence. David E.