This is the largest collection in the Herbarium BCN and it currently has over 350,000 specimens. There is a good representation of materials from the Pyrenees, the Ebro Valley, North Africa and some tropical areas of South America. In terms of taxa, there is a broad representation of the genera Artemisia, Delphinium, Dianthus, Euphorbia and Thymus. There are also a number of historical collections, such as those of P. Font i Quer, T. M. Losa, J. Planellas, Fr. Sennen and J. Texidor. In addition, there is a teaching herbarium that can be consulted at the CRAI library of Biology and the CRAI Pharmacy and Food Science Library (Diagonal Campus) and also at the virtual herbarium.