Leptomitales is an order of heterokont. There are 43 species of Leptomitales, in 12 genera and 2 families. It includes groups like Leptolegniellaceae and Leptomitaceae.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
