Seiridium is a genus of plant pathogens in the family Sporocadaceae. The genus Lepteutypa is teleomorphic (reproducing sexually) and the corresponding anamorphic name, used to describe the asexual form, is Seiridium (formerly Coryneum). For instance, the name Seiridium cupressi is still be used for the anamorphic form of that species, but now that it is known that a sexual stage exists, the name Lepteutypa cupressi. On the other hand, no sexual stage of species Seiridium cardinale is known, so that is its only name. Seiridium cardinale is important to gardeners and foresters as they cause the devastating Cyprus canker disease on Cupressus, Thuja, and related conifers in Northern Europe, America, Australia, and New Zealand. Seiridium cardinale is from California and was introduced to Europe around the 1930s, probably from infected nursery stock. A separate introduction affected the southern hemisphere. Species As accepted by Species Fungorum; Seiridium abietinum Seiridium anceps Seiridium aquaticum Seiridium bignoniae Seiridium breviaristatum Seiridium caffrum Seiridium camelliae Seiridium canariense Seiridium cancrinum Seiridium cardinale Seiridium castaneae Seiridium ceratosporum Seiridium chinense Seiridium corni Seiridium cupressi Seiridium delleanii Seiridium embeliae Seiridium eriobotryae Seiridium eucalypti Seiridium indicum Seiridium intermedium Seiridium italicum Seiridium jefferisii Seiridium kartense Seiridium kenyanum Seiridium mali Seiridium marginatum Seiridium neocupressi Seiridium papillatum Seiridium persooniae Seiridium pezizoides Seiridium phylicae Seiridium podocarpi Seiridium proteae Seiridium pseudocardinale Seiridium rosarum Seiridium rostratum Seiridium spyridiicola Seiridium syzygii Seiridium tecomae Seiridium terebinthi Seiridium turgidum Seiridium venetum Seiridium viburni Former species; S. acerinum = Sporocadus acerinus, Sporocadaceae S. banksiae = Distononappendiculata banksiae, Sporocadaceae S. juniperi = Pestalotia juniperi, Pestalotiopsidaceae S. liquidambaris = Harknessia liquidambaris, Harknessiaceae S. unicorne = Seiridium cupressi References Amphisphaeriales Taxa named by Christian Gottfried Daniel Nees von Esenbeck Taxa described in 1817