Palynology and systematics : the twenty-fifth Systematics Symposium, (20-21 October, 1978) - Systematics Symposium (25th : 1978 : Lehmann Building, Missouri Botanical Garden).; Missouri Botanical Garden (St.Louis, Mo. : Missouri Botanical Garden Press, 1979)
Issued as Annals of the Missouri Botanical Garden vol. 66, no. 4 1979.
Cataloguing based on first page.
Keywords: Palynology -- Congresses; Pollen -- Congresses; Botany -- Classification -- Congresses