Institute for Plant Ecology 
Information about research and teaching activities with focus on biodiversity and ecophysiology in different climatic regions, based at the University Münster.
http://www.uni-muenster.de/Biologie/pflanzenoekologieGlossary of Botanical Terms
Contains more than 2,500 terms relating to botany, gardening, horticulture and landscape architecture. Fully searchable and it is regularly updated.
http://www.gardenweb.com/glossary/
Botresearch USA
a botanical research and biotechnology organization specializing in tissue culture, photomicroscopy, and the production of educational materials for universities.
http://www.botresearch.com/
Max Planck Institute for Plant Breeding Research
Conducts research programs on molecular-biological, genetical, biochemical, physiological and cytological aspects of plant development and plant breeding. [English and German versions available.]
http://www.mpiz-koeln.mpg.de/
Hunt Institute for Botanical Documentation
A division of Carnegie Mellon University. Archives, research, art, and information about the institute are included.
http://huntbot.andrew.cmu.edu
Green Plant Phylogeny
Green plant phylogeny research coordination group.
http://ucjeps.berkeley.edu/bryolab/greenplantpage.html
Plant Tissue Culture Information Exchange
Intended to give researchers, teachers and producers rapid access to information about plant tissue culture.
http://aggie-horticulture.tamu.edu/tisscult/tcintro.html
International Centre for Research and Training on Seabuckthorn
Information on the biology of this plant and its uses for environmental, economic, nutritional, and medical purposes; emphasizing erosion control.
http://www.icrts.org
Botany Encyclopedia
Includes a botanical dictionary, advice for gardeners, and a store selling plants.
http://www.botany.com/
Botanical Society of America Image Collection
Collection of 14 sets of educational images for instructional use, with search capability.
http://images.botany.org/
About.com: Botany
A page of links and articles.
http://botany.about.com/
Root Biology and Mycorrhiza Research Group
Descriptions of current research projects at the Department of Botany, University of Guelph, Ontario, Canada.
http://www.uoguelph.ca/botany/people/faculty/peterson/research.html
Center for Plant Conservation
Collaborative organization dedicated to conserving and restoring the rare native plants of the United States. Includes information on conservation techniques.
http://www.centerforplantconservation.org/
Cladistics or Supercilious?
Textual review of the development of evolutionary trees in botany. Written by Henry Loconte.
http://members.aol.com/__121b_8Az5OGEtpOHzNwRgQIsq+Ik2+3ABJGENQfrswci539U=
