Patrick Blanc just before bathing in a forest stream, Saint Elie field research station, French Guyana, Fev. 1978
Patrick Blanc coming back from a field trip with botanical samples for his Ph D, Saul, French Guyana, Feb. 1978
Patrick Blanc and Katia Andraos, just before studying the growth habits in the genus Piper, Pierre and Marie Curie University, Paris, Nov. 1978