Polycoccum is a genus of lichenicolous fungi in the family Polycoccaceae. It has about 60 species.

Species As accepted by Species Fungorum;

Polycoccum acarosporicola Polycoccum aksoyi Polycoccum alboatrum Polycoccum alpinum Polycoccum amygdalariae Polycoccum anatolicum Polycoccum atrostriatae Polycoccum clauderouxii Polycoccum crassum Polycoccum crespoae Polycoccum deformans Polycoccum dictyonematis Polycoccum dzieduszyckii Polycoccum epizoharyi Polycoccum follmannii Polycoccum hawksworthianum Polycoccum heterodermiae Polycoccum hymeniicola Polycoccum ibericum Polycoccum islandicum Polycoccum kerneri Polycoccum laursenii Polycoccum longisporum Polycoccum marmoratum Polycoccum microcarpum Polycoccum microsticticum Polycoccum minus Polycoccum nigrosporum Polycoccum ochvarianum Polycoccum opulentum Polycoccum parmotrematis Polycoccum perrugosae – host=Placopsis perrugosa Polycoccum psorae Polycoccum psoromatis Polycoccum pulvinatum Polycoccum rinodinae Polycoccum rubellianae – Spain; host=Caloplaca rubelliana Polycoccum sauteri Polycoccum squamarioides Polycoccum stellulatae Polycoccum stictaria Polycoccum teresum Polycoccum trypethelioides Polycoccum ventosicola Polycoccum vermicularium

Former species; P. arnoldii = Sphaerellothecium arnoldii, Mycosphaerellaceae P. bryonthae = Didymocyrtis bryonthae, Phaeosphaeriaceae P. bryonthae var. stellulatae = Polycoccum stellulatae P. dannenbergii sensu auct. brit. p.p. = Roselliniella atlantica, Sordariales order P. dannenbergii sensu auct. brit. = Peridiothelia fuliguncta, Pleomassariaceae P. dannenbergii = Peridiothelia fuliguncta, Pleomassariaceae P. epicrassum = Clypeococcum epicrassum, Polycoccaceae P. fumosarium = Endococcus rugulosus, Dothideomycetes P. galligenum = Polycoccum pulvinatum P. gelidarium = Roselliniopsis gelidaria, Sordariales P. hymeniicola = Verrucoccum hymeniicola, Dictyosporiaceae P. infestans = Didymocyrtis infestans, Phaeosphaeriaceae P. kaernefeltii = Didymocyrtis kaernefeltii, Phaeosphaeriaceae P. peltigerae = Didymocyrtis peltigerae, Phaeosphaeriaceae P. sauteri var. margarodes = Polycoccum sauteri P. slaptonense = Didymocyrtis slaptonensis, Phaeosphaeriaceae P. sporastatiae = Muellerella pygmaea, Verrucariaceae P. triphractoides = Phaeospora triphractoides, Dothideomycetes P. umbilicariae = Endococcus umbilicariae, Dothideomycetes

References