The Umbilicariales are an order of lichenized fungi in the subclass Umbilicariomycetidae, class Lecanoromycetes. It contains five families: Elixiaceae, Fuscideaceae, Ophioparmaceae, Ropalosporaceae, and Umbilicariaceae. Umbilicariales was proposed as a new order in 2007, while the subclass Umbilicariomycetidae was proposed in 2013.
Families and genera , Species Fungorum accepts 5 families, 18 genera, and 107 species in the order Umbilicariales:
Elixiaceae Elixia – 2 spp. Meridianelia – 1 sp.
Fuscideaceae Albemarlea – 1 sp. Fuscidea – 31 spp. Hueidea – 1 sp. Lettauia – 2 sp. Maronea – 2 spp. Maronora – 1 sp. Orphniospora – 2 spp.
Ophioparmaceae Boreoplaca – 1 sp. Hypocenomyce – 5 spp. Ophioparma – 4 spp.
Ropalosporaceae Ropalospora – 8 spp.
Umbilicariaceae Fulgidea – 2 spp. Lasallia – 5 spp. Umbilicaria – 35 spp. Xylopsora – 3 spp.
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