Septonema Toruloideum: A Stage of Mytilidion Scolecosporum

This paper presents a taxonomic and cultural study of Mytilidion scolecosporum Lohman (6), a species of the Hysteriaceae. The fungus 2 is an exceptionally interesting one, not only because it ap? pears to be intermediary between Lophium and Mytilidion, showing in some aspects of its life history a rather close affinity with M. Karstenii Sacc, but also because it has as a conidial stage the seldom reported Hyphomycete, Septonema toruloideum Cooke & Ellis.