Columbia subject headings:
Harvard subject headings:
Botany--Morphology--Congresses.
Fungi--Anatomy--Congresses.
Fungi--Morphology--Congresses.
Plant anatomy--Congresses.
Plant morphology--Congresses.
Plant physiology--Congresses
Plants--Reproduction--Congresses.
Princeton subject headings:
Fungi--Anatomy--Congresses.
Plant anatomy--Congresses.
Plant morphology--Congresses.