XVI International Botanical Congess

The INTKEY component of DELTA has been widely used for the production of interactive keys to a range of biological taxa. In relation to grass identification, INTKEY keys can be downloaded from the net of world genera (http://biodiversity.uno.edu/delta/grass) and world species http://www.rbgkew.org.uk/herbarium/gramineae/wrldgr.htm). A subset of the world species set is being developed for Australian grasses to accompany the three printed grass volumes of the Flora of Australia. This interactive key will be available in INTKEY as well as, via a DELTA translator, in the LuCID format (at http://www.ctpm.uq.edu.au/software/lucid/LucIDProfessiona lMain.htm), and thought by some users to be simpler to use than INTKEY. The Australian grass database presently comprises 1288 species and 1111 characters and is enhanced by scanned images of published illustrations, herbarium specimens (whole sheets and inflorescence details), distribution maps and full descriptions of each species. Examples of outputs from both packages are shown in the poster.