Umbilicariales
Introduction 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. ::''Rhizoplacopsis'' – 1 sp. *Ropalosporaceae::''Ropalospora'' – 8 spp. *Umbilicariaceae::''Fulgidea'' – 2 spp. ::''Lasallia'' – 5 spp. ::''Umbilicaria'' – 35 spp. ::''Xylopsora'' – 3 spp.
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