strange bud on philodendron

hi Plumbism, welcome to GOY, the proper name is Philodendron, but i am guessing you want the variety for it, it is hard to tell shape of leaf from this picture, but i think it is a P.hastatum or P.domesticm. the common name is Elephant's Ear Philodendron and you are very lucky to have a bud apprently they rarely flower or fruit as house plants, so fingers crossed you will get a nice flower soon. looks healthy enough, all though one little peice of advice, maybe a gentle wipe over with a warm damp cloth would be a good idea lol. would love to see a pic if it does do the business for you.