| Lecture Committee |
| Lectures |
| Lectures: Patron Lectures |
| Science, Conservation and Humanities Seminars |
| Speakers Bureau |
| Symposium: Advances in Neotropical Plant Systematics and Floristics |
| Symposium: Alexander von Humboldt 2016 |
| Symposium: Allergenic Plants 1983 |
| Symposium: APGA Conservatory |
| Symposium: Art and the Landscape 1992 |
| Symposium: Artistry in Flowers |
| Symposium: Backyard Ecology 1972 |
| Symposium: Bamboos 1989 |
| Symposium: Bangkok, Thailand 1980 |
| Symposium: Beverages 1976 |
| Symposium: Bicentennial 1976 |
| Symposium: Botanical Dermatology 1985 |
| Symposium: Botanical Gardens and Arboreta 1980 |
| Symposium: Change for Survival 1968 |
| Symposium: Children's Science Books 1986 |
| Symposium: Chinese Healing Arts 1990 |
| Symposium: Climate Changes 2006 |
| Symposium: Commemorating Carl Linnaeus 1978 |
| Symposium: Complete College Garden 1992 |
| Symposium: Conservation Conversations 2009 |
| Symposium: Continuing Education in Cultural Institutions 1980 |
| Symposium: Darwin 21st Century Perspectives 2008 |
| Symposium: European Garden Style 1989 |
| Symposium: Garden Design in America 1989 |
| Symposium: Gardening by the Sea 1983 |
| Symposium: Gardening for Beginners 1992 |
| Symposium: Gardening in a Changing Climate |
| Symposium: Geographical Data Organization for Rare Plant Conservation 1977 |
| Symposium: Growing Vegetables 1985 |
| Symposium: Healing Plants- Myths, Magic and Medicine 1992 |
| Symposium: Herbals and Herbal Medicine 1980 |
| Symposium: Historic Landscapes and Gardens 1982 |
| Symposium: Horticulture Therapy 1984 |
| Symposium: Human Resources Management in Cultural Institutions 1982 |
| Symposium: Integrated Disease and Pest Management 1984 |
| Symposium: International Symposium on Urban Horticulture 1983 |
| Symposium: Japanese Garden Design 1987- 1990 |
| Symposium: Landscape Design in America 1991 |
| Symposium: Landscaping with Flowering Shrubs 1987 |
| Symposium: Landscaping with Perennials 1985/1986 |
| Symposium: Landscaping with Perennials 1987 - 1991 |
| Symposium: Native American Herbalism 1980 |
| Symposium: Natural Materials in Frangrance and Falvor 1980 |
| Symposium: Neotropical Montane Forests 1993 |
| Symposium: New Perennials 1983 |
| Symposium: New Trends in Landscape Design 1989 |
| Symposium: Nutrition and Cancer 1984 |
| Symposium: Nutrition Cultism Education Department 1982 |
| Symposium: Orchid Biology 1983 |
| Symposium: Our Northeastern Forests 1991 |
| Symposium: Perennials Plants for the 80's 1984 |
| Symposium: Perennials The New Perennials 1983 |
| Symposium: Plant Conservation 1986 |
| Symposium: Plant Tissue Culture 1982 |
| Symposium: Plants for the Connoisseur 1985 |
| Symposium: Plants as Alternative Energy Sources 1982 |
| Symposium: Plants for Health and Healing 1991 |
| Symposium: Plants in Our Lives in the 80's 1981 |
| Symposium: Poisonous Plants of the Urban and Suburban Environment 1979 |
| Symposium: The Power of Place 1991 |
| Symposium: Professional Practice for Designers 1988 |
| Symposium: Psychoactive Plants 1984 |
| Symposium: Psychoactive Plants 1986 |
| Symposium: Rare and Endangered Plants 1976 |
| Symposium: Rock Gardening 1985 |
| Symposium: The Romantic Garden 1991 |
| Symposium: Rooftop Garden Design 1985 |
| Symposium: Roots of Life 1986 |
| Symposium: Roses, Roses, Roses 1992 |
| Symposium: Successful Education Programs in Cultural Institutions 1989 |
| Symposium: Thai-USA Cooperative Science Program 1980 |
| Symposium: Tobacco 1981 |
| Sympsium: Traditional Uses of Herbs - Amerindian Ethnobotany 1985 |
| Symposium: Tropical Forest Medical Resources and the Conservation Biodiverity |
| Symposium: Vegetable Gardening 1986 |
| Symposium: Viticulture 1985 |
| Symposium: Wildflower Cultivation 1991 |
| Symposium: Winter Landscapes 1990 |
| Winter Lecture Series |
