A collecting trip to Linggiu, Johor, was made between 18 and 27 July, 1991. A total of 33 botanical scientists and staff from FRIM, the Malaysian Agricultural Research and Development Institute (MARDI), the Agricultural University of Malaysia (UPM), the University of Science Malaysia (USM), the National University of Malaysia (UKM), the Singapore Botanic Gardens (SING), and Forest Department of Sarawak (SAR) participated. Over 1000 specimens of forest trees, shrubs, and herbs were collected either as herbarium specimens, or as living collections. Collecting was done mainly in areas for the proposed reservoir and dam at Linggiu. A field trip was made by a group of Japanese pteridologists between 29 July and 8 August, 1991. A report, entirely in Japanese, appeared in the J. Nippon Fernist Club 2 (1992) 1818-1823, with illustrations. Apparently the western part was visited, starting in Singapore and ending in Penang. A list of species seen (collected?) in Kuala Lumpur, Fraser’s Hill, and the Cameron Highlands is given.