- Botanical Society of America Online Image Collection
- Collections include plant geography, morphology, phloem and xylem development, floral ontogeny, lichens, economic botany, and more. - Botanicus
- Explore Botanicus, the web-based encyclopedia of historic botanical literature from the Missouri Botanical Garden Library. - BOTANY Online: The Internet Hypertextbook
- Passing on plant knowledge to students and other interested web-users. Site in English and German, by University of Hamburg, Germany. - Cellulose Electronic Network, The
- CEN's goal is to promote communication amongst cellulose researchers from around the world both in academia and industry to promote cellulose research. - Checklist of Online Vegetation and Plant Distribution Maps
- Includes maps from all over the world. - Glossary of Botanical Terms
- Interactive glossary of terms relating to botany, gardening, horticulture, and landscape architecture. - International Tundra Experiment (ITEX)
- Field programme monitoring and studying the performance of circumpolar plant species and communities. - killerplants.com
- Devoted to the mystery and excitement of botanical connections the make our lives, our civilizations possible. Killerplants features a plant of the week section and a newsletter covering topics such as: herbal folklore, plants that changed history, unusual species, and other unique plant topics. - Plant Biology Advice
- Offers information on various aspects of plant biology. Topics range from growing plants in the garden to university level botanical articles, university choice advice, and molecular biology techniques. - PlantExplorers.com
- Resource for anyone who likes plants, and who wants to learn more about them and the people who discovered them. - Schroeder Lab - University of California at San Diego
- Research focuses on signal transduction mechanisms in higher plant cells. - Seed Biology Place, The
- Biology lab affiliated with University Freiburg, Germany, presents research on seeds, including plant hormones and seed structure, dormancy, evolution, germination, and ecology. - VBI Microbial Database
- Microbial database at Virginia Bioinformatics Institute (VBI) hosts data from a range of plant pathogenic oomycetes, fungi, and bacteria. - Vignettes From the History of Plant Morphology
- Religion, mysticism, metaphysics, and science in the work of botanists and plant morphologists Agnes Arber, Edmund Sinnott, and Edith Saunders in the first half of the twentieth century. - Virtual Foliage
- Image collection of general botany, trees, plant diversity, fungi, and vegetation of Wisconsin. - Wayne's Word
- On-line textbook of natural history by Professor Wayne P. Armstrong of Palomar College. Includes on-line lecture courses in botany and biology, trivia, and photos.
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