 The classification of the Amylostereaceae is not completely resolved . The next closest relatives might be – depending on the research – either Echinodontium <unk> and most other species of the genus Echinodontium , or <unk> <unk> . Most of the previous DNA analysis results suggest a narrow relation to Echinodontium , but several results of studies partially contradict this conclusion . Only the classification to the <unk> is regarded as correct . Some authors have suggested that Amylostereum should be placed in the family <unk> . 
