Contains the following twelve papers:
1: Some new and noteworthy corticioid fungi (Basidiomycotina, Aphyllophorales) from Japan. K. Hjortstam & L. Ryvarden 8
2: Tropical species of Mycoaciella (Basidiomycotina, Aphyllophorales). K. Hjortstam, & L. Ryvarden 14
3: A reevalution of Nodotia Hjortstam (Corticioid fungi, Basidiomycotina, Aphyllophorales) K. Hjortstam & L. Ryvarden 17
4: Some new genera and species of corticioid fungi (Basidiomycotina, Aphyllophorales) from tropical areas. K. Hjortstam & L. Ryvarden 20
5: Poroid fungi (Basidiomycota) of the Atlantic rain forest in Northeast Brazil. T. Gibertoni, L. Ryvarden & M. A. Q. Cavalcanti 33
6: Studies in neotropical polypores 18. New species (Basidiomycota) from Brazil. T. Gibertoni, L. Ryvarden & M. A. Q. Cavalcanti 44
7: Studies in neotropical polypores 19. Two wood-inhabiting Amauroderma species, L. Ryvarden 57
8: Studies in neotropical polypores 20. Some new polypores from the Amazonas region, L. Ryvarden 62
9: Studies in neotropical polypores 21. New and interesting species from Venezuela. L. Ryvarden & T. lturriaga 68
10: Porostereum vibrans, L. Ryvarden 76
11: Two new Tyromyces species from Ethiopia, A. Bitew & L. Ryvarden 80
12: Trametes africana L. Ryvarden 83