Pieter Baas

Baas retired as professor and director in September 2005, and was succeeded by Erik Smets [nl]. Until age 65, he maintained a zero-hour contract at the institute, and then returned to his research on wood anatomy. As of 2013 he is still active as professor emeritus and honorary staff member at the Naturalis Biodiversity Center, the successor institute to the National Herbarium of the Netherlands.

While in Sri Lanka in 2004, Baas survived the Indian Ocean tsunami.

The university board and the Royal Netherlands Academy of Arts and Sciences aided Baas in his wish to see the collection preserved and a special fund was established. In 1999 the National Herbarium of the Netherlands was formed from the collections of the herbariums of the universities of Leiden, Utrecht University and Wageningen. Ritzen subsequently denied the influence of Beatrix in the matter while Baas was convinced that Beatrix helped with the formation of the institute. Baas became director of the newly formed National Herbarium.

In 1991 Baas became scientific-director of the Rijksherbarium. Baas was pressured to take over the position from his predecessor Cornelis Kalkman. Although content as a researcher and not very interested in directing and managing, Baas took up the position of director out of a sense of duty.

In 1987 Baas became a corresponding member of the Botanical Society of America and a member of the Royal Netherlands Academy of Arts and Sciences in 2000. In 2003 he won the Linnean Medal of the Linnean Society of London. Baas became a Knight in the Order of the Netherlands Lion in 2005.

Since 1976 Baas has been Editor-in-Chief of the International Association of Wood Anatomists Journal. As an expert on wood anatomy, Baas was at times asked to be a scientific expert on police investigations regarding wooden weapons or tools.

In 1975 Baas earned his PhD in wood anatomy, with a thesis entitled: "Comparative anatomy of Ilex, Nemopanthus, Sphenostemon, Phelline, and Oncotheca". In 1987 he became professor (Bijzonder hoogleraar [nl], paid from non-university funds) of plant systematics at Leiden University. In 1991 he became a regular professor.

In 1962 Baas started studying biology at Leiden University. In his first year of biology Baas hated plant systematics as he hardly knew any plants or animals. He preferred plant anatomy and physiology. While studying he was offered a job at the Rijksherbarium [nl], the herbarium of Leiden University, by its director Cornelis Gijsbert Gerrit Jan van Steenis. Baas rejected the offer, having no interest in working in a herbarium. For his final year of studying Baas wished to stay at the Royal Botanic Gardens, Kew. Van Steenis agreed to this if Baas took up a course of systematics. Between 1968 and 1969 Baas studied at the Royal Botanic Gardens under Professor C.R. Metcalfe [es]. On his return from the United Kingdom Baas approached Van Steenis and asked to be employed as a wood anatomy expert. In 1969 Baas became an employee of the Rijksherbarium.

Pieter Baas (born 28 April 1944) is a Dutch botanist. He is an emeritus professor of plant systematics at Leiden University. He served as director of the Rijksherbarium [nl] of Leiden University between 1991 and 1999. When the institute was faced with budget cuts in 1993 he managed to preserve the collection by joining it with the university collections of Wageningen and Utrecht. This led to the founding of the National Herbarium of the Netherlands in 1999. Baas subsequently became director of the institute and served until 2005. As a botanist Baas specializes in wood anatomy.

Baas was born on 28 April 1944 in the municipality of Wieringermeer. He attended the MULO and later the HBS.