Types of morel mushrooms

The best known morels are the Yellow Morel or Common Morel (Morchella esculenta);
the White Morel (M. deliciosa); and the Black Morel (M. elata). Other common names for
morels include Merkel, Sponge Mushroom, and Molly Moocher. In the Appalachian
mountains in Tennessee and Kentucky they are known as dry land fish and hickory
chickens. When gathering morels, care must be taken to distinguish them from the
poisonous false morel (Gyromitra esculenta and others). Other species of true morels
include M. semilibera and M. vulgaris. Discriminating between the various species is
complicated by uncertainty regarding which species are truly biologically distinct.
Mushroom hunters refer to them by their color (e.g., gray, yellow, black) as the species
are very similar in appearance and vary considerably within species and age of
Young Dryad Saddle
Polyporus squamosus
       Half-Free Morels
  Morchella semilibera