Of the world’s 615 conifer species, 211 or 34% are listed by the International Union for Conservation of Nature (IUCN) as being threatened. This web resource will eventually include global and national assessments of all the threatened conifers using the 2001 IUCN Categories & Criteria (version 3.1). The global assessments, which have been compiled by members of the IUCN/SCC Conifer Specialist Group, have been published on the IUCN website (http://www.iucnredlist.org). For some taxa the taxonomic treatment will differ from that used by IUCN. If users of this website have further information and particularly photographs that will improve this site then we would be very pleased to hear from you.