The Geophyte Page http://virtual.clemson.edu/groups/hort/sctop/geophyte/webpage.htm
Information on herbaceous plants with underground storage organs such as bulbs, corms, and tubers. Oriented primarily towards commercial growers, forcers, and retailers. Production statistics, crop specific guidelines for major geophytic plants such as tulips, daffodils, and lilies. Clemson University.
The Horticultural Taxonomy Group http://www.hortax.org.uk/
Gives the history of HORTAX, an association of taxonomists and horticulturists interested in the classification and nomenclature of cultivated plants, member information and links to the archives of HORTAX News.