The Families of Gymnosperms
Interactive key, including interactive information retrieval
The interactive key allows free choice of characters, is easy to use, and can lead to correct identifications in spite of occasional errors. It can display all the illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.
Character list • Implicit attributes
Poems on gymnosperms by Giles Watson
References • Citation • Contacts, conditions of use, contributions
These descriptions were generated from a DELTA database (Dallwitz 1980; Dallwitz, Paine, and Zurcher 1993). The bold parts are diagnostic descriptions, generated with the aid of Intkey (Dallwitz et al. 1993). They distinguish each taxon in at least one respect from the other taxa.
• Araucariaceae • Cephalotaxaceae • Cupressaceae • Cycadaceae • Ephedraceae • Ginkgoaceae • Gnetaceae • Pinaceae • Podocarpaceae • Sciadopityaceae • Stangeriaceae • Taxaceae • Taxodiaceae • Welwitschiaceae • Zamiaceae • Ancient Conifers and Taxads • Ancient Cycads
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2008 onwards. The families of gymnosperms. Version: 6th November 2009. http://delta-intkey.com’.
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