Discomycetes: These are ascomycetes in which the hymenium, (spore carrying surface) lines an area on the fruiting body
exposed to the elements. This is similar to the basidia in the agarics.
Helotiales: These mushrooms are either stalked or cup like in shape or both. The asci in this group all have pores at
the tips through which the spores are released.
Pezizales: Mushrooms in this group are characterized by that their asci all have lids which open when the fruit body is
disturbed releasing the spores.
Tuberales: This group of mushrooms are rarely seen because they grow underground like plant tubers. Some of them are
considered a delicacy and specially trained dogs or pigs are used to find them!!
Pyrenomycetes: In this group the spore bearing surface is carried within the fruit body and not exposed to the elements.