is written in three parts, a "connecting term" (not part of the name) is needed to show the rank. Thus the American black elder is Sambucus nigra subsp. canadensis; the white-flowered form of the ivy-leaved cyclamen is Cyclamen hederifolium f. albiflorum''. See also Glossary of scientific naming Botanical name Hybrid name (botany) List of botanists by author abbreviation List of Latin and Greek words commonly used in systematic names List of organisms named after famous people List of zoologists by author abbreviation Scientific terminology Species description Undescribed taxon Notes References Bibliography Further reading External links Curiosities of Biological Nomenclature NCBI Taxonomy Database