IRMNG Taxon list
- Helocarpon crassipes Th. Fr., 1860 accepted as Micarea crassipes (Th. Fr.) Coppins, 1983
- Helocarpon gelatinosum (Flörke) M. Choisy, 1950 accepted as Trapeliopsis gelatinosa (Flörke) Coppins & P. James, 1984
- Helocarpon granulosum (Ehrh.) M. Choisy, 1950 accepted as Trapeliopsis granulosa (Hoffm.) Lumbsch, 1983
- Helocarpon sapineum (Fr.) M. Choisy, 1950 accepted as Trapeliopsis granulosa (Hoffm.) Lumbsch, 1983
- Helocarpon viridescens (Schrad.) M. Choisy, 1950 accepted as Trapeliopsis viridescens (Schrad.) Coppins & P. James, 1984
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