Ruth Kiew - professor of Botany at UPM, Keeper of the Herbarium and Library in Singapore Botanic Gardens, currently FRIM Fellow for the Flora of Peninsular Malaysia Project.
Plant taxonomist and conservationist began to work on limestone with the MNS Expedition to the limestone in Taman Negara in 1985. Has described three new genera and many species of herbaceous plants from limestone. Carried out surveys of limestone plants in Perak (for MNS), Perlis (WWF-Malaysia) and Kelantan (WWF-Malaysia). Currently heading a team from FRIM to survey the flora of limestone hills in Peninsular Malaysia. Has also carried out surveys of limestone in Sabah, Kuching Division, Sarawak (with Sarawak Biodiversity Centre) and described many new species of begonia with Julia Sang, Biodiversity Research Centre, Sarawak Forestry. Recently with the FRIM team carried out a Rapid Conservation Assessment of Batu Caves, Selangor.