The Araceae Family is commonly referred to as the Arum Family and is the family of aroids. Plants of the World Online lists 128 accepted genera in this family as of 11-3-18 and the Wikipedia says there are 114 with a total of about 3,750 species.
The Missouri Botanical Garden in St. Louis, Missouri maintains the largest collection of Araceae in the world. There are many awesome experts specializing in this family and the Exotic Rainforest is an amazing site to visit. It is a privately owned botanical garden in Northwest Arkansas specializing in members of the Araceae family. The website hasn’t been updated since January 2011, but it said their collection included 119 genera and nearly 3,700 species.
For further information on this family of plants, please click on the links below. They take you directly to the page for the family.