Pieter Baas Professor emeritus Botany biology herbarium hortus botanicus taxonomy Name Prof.dr. P. Baas Telephone +31 71 527 2727 E-mail baas@nhn.leidenuniv.nl Professor emeritus Botany Science Instituut Biologie Leiden IBL Algemeen Contact +31 71 527 2727 baas@nhn.leidenuniv.nl Publications No relevant ancillary activities Share on Facebook Share on X Share on LinkedIn Share by WhatsApp> Share by Mastodon