First record of the tropical fungus Hobsonia mirabilis (Peck) Linder (Atractiellales) in Austria

In June 2009 in the glass houses of the Botanical Garden of the Vienna University several colonies of a gelatinous fungal mass were recognised in several plant pots. Although the gelatinous mass vanished soon the phenomenon reoccurred from time to time until now. Close investigation revealed that the emergences were caused by growth of the tropical fungus Hobsonia mirabilis. This is the first documentation of an occurrence of this fungus in Austria. Distribution and taxonomy are discussed briefly.