1988: Member of the team for the project “Flora of Andalusia and North Africa,” Universities of Seville, Cordoba and Granada. Director: B. Valdés.
1987-1990: Member of team for the project “Flora Iberica” in charge of the family Cruciferae, Madrid Royal Botanic Garden, Spain. Director: S. Castroviejo.
From 1979 to 1986: Participated with the Departments of Botany, Universities of Madrid, Seville and Cordoba in the “Western Andalusian Flora” (Cruciferae family: Taxonomy and Chorology) project. Director: B. Valdés.
From 1971 to 1978: Collaboration in the research project on “Seed Bank of endemic plants in Spain” carried out by the Department of Plant Biology and Physiology of the School of Agricultural Engineering, Madrid Polytechnic University, funded by INIA (Spanish Institute for Agricultural Research). Director: C. Gómez-Campo.