BAAS, PIETER (28 April 1944, Wieringermeer, The Netherlands – *) Dr. Baas was appointed retroactive to 1 January 1991 as Professor of Systematics and Scientific Director of the Rijksherbarium (L) and Hortus Botanicus after the retirement of Dr. C. Kalkman. Although he is an anatomist, he has a keen interest in the Flora Malesiana and intends to lead its progress vigorously. Dr. T. DEROIN (P) appointed in October 1989 as ‘Maître de Conférences’ is in charge of the Asiatic Department for loans and exchanges in P (Paris).