C. intratropica. Callitris drummondii – S WA Callitris endlicheri – NSW, QLD, VIC (hilly areas); naturalised in Hawaii and St Helena Callitris glaucophylla - NSW, Qld, SA, NT, WA (most common) Callitris intratropica - NT (blue cypress) Callitris macleayana – QLD, NSW Callitris monticola – QLD, NSW Callitris muelleri – NSW Callitris neocaledonica – New Caledonia Callitris oblonga – NSW, TAS Callitris pancheri – New Caledonia Callitris preissii – SA, VIC, WA, NSW Callitris rhomboidea – NSW, QLD, VIC, TAS, naturalised on New Zealand's North Island Callitris roei – S WA Callitris sulcata – New Caledonia Callitris verrucosa – SA, VIC, WA, NSW, QLD Doubtful names The following names are of doubtful validity: Callitris arenosa Sweet, nom. inval., nom. nud., type not cited, identity uncertain. Callitris columellaris f. glauca F.M.Bailey, described from Qld, type not located, identity uncertain (Hill, 1998). Callitris conglobata Heynh., nom. inval., nom. nud, described from New Holland, type not located, identity uncertain. Callitris elegans Heynh. (or Sieber ex Heynh.), nom. inval., nom. nud, described from "New Holland", type not located, identity uncertain. Callitris intermedia''' R.T.Baker & H.G.Sm., nom. inval., identity uncertain (Hill, 1998). Callitris montana Heynh., nom. inval., nom. nud, described from New Holland, type not located, identity uncertain. Callitris pyramidalis Sweet, nom. inval., nom. nud, syn. Frenela pyramidalis (Sweet) Parl., nom. inval., nom. nud, type not cited, identity uncertain. Callitris macrocarpa Vent., nom. inval. nom. nud, syn Cupressus macrocarpa (Vent.) A.Cunn., nom. inval., identity uncertain. Human use The wood of cypress-pines is light, soft and aromatic. It can be easily split and resists decay; cypress-pine is also termite resistant. It is used to make furniture, indoor and outdoor paneling, and fence posts. Cypress-pines are occasionally planted as ornamental trees, but their use is restricted by the high risks imposed by their very high flammability in bushfires. Previously a plantation of C. intratropica'' was established outside of Darwin for use in house construction. After Cyclone Tracey it was realised that the timber did not resist strong winds and the plantation was abandoned. The trees are now used for the production of a blue essential oil, rich in guaiol and chamazulene (the blue compound). A number of therapeutic effects are attributed to the essential oil, including antimicrobial and anti-inflammatory effects. References External links Gymnosperm Database - Callitris Arboretum de Villardebelle - Photos of cones Conifer genera pl:Cyprzyk