Columbia subject headings:
Basidiomycetes--Congresses.
Fungi--Genetics--Congresses.
Fungi--Morphogenesis--Congresses.
Harvard subject headings:
Basidiomycetes.
Fungi--Genetics
Princeton subject headings:
Basidiomycetes--Congresses.
Fungi--Genetics--Congresses.
Fungi--Morphogenesis--Congresses.