A group of fungi called the Ascomycetes, or sac fungi, all produce their spores in sac-like structures. This group includes, among others, morels, false morels, cup fungi and saddle fungi. Sac fungi in the genus Helvella are known as “Elfin Saddles” — the caps of their fruiting bodies come in a variety of shapes, including ears and cups as well as saddles. Most are not brightly colored and are usually white, cream, buff, brown, gray or black. Helvella species grow on the ground or, in a few cases, on rotting wood. Species are defined by the shape of their caps and the texture of their outer surface and stem. (Thanks to Susan and Dean Greenberg for photo op.)
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