The Botanic Garden of Barcelona is a center of exhibition of alive plant collections from all the regions of the World with Mediterranean climate. The collections are distributed according to their geographical origin and the species are divided representing natural plant communities. So, several plant assemblages with the same environmental requirements (waterings, substratums, fertilizers...) are created and their maintenance becomes more sustainable. The Garden has an area of nurseries for the production of plants and useful infrastructures for conservation projects. It also has technical personnel's staff for the control of the existent collections and for the inclusion of new ones.
The Herbarium COA began in 1980. It approximately includes 75000 sheets of pressed and dried plants fundamentally from Andalusia. It is specialized in species of the family Brassicaceae, weeds and endemic plants of the Iberian Peninsula and Balearic Islands. The sheets are stored in 17 compact closets distributed by families, genus and species. The Herbarium also includes an archive and a register.
The herbarium of the Barcelona Botanical Institute, known internationally by the initials BC, specialises in the flora of the western Mediterranean region. This Herbarium is integrated by the general herbarium of vascular plants, some historical collections collected in the XVIII and XIX centuries and some collections of mosses, lichens and mushrooms and algae.
The BCN Herbarium was created in 2001 by menas of the merger of the BCF and BCC old herbariums. It is integrated by more than 300,000 sheets of plants basically from the Iberian Peninsula and other areas of the Mediterranean region. The main groups represented are: cormophytes (250,000 sheets), lichens (22,000 specimens), fungi (20,000 specimens), seweeds (5,000 sheets) and bryiophytes (3,000 sheets).
Strength: 1- Geobotany and Cartography of the vegetation, 2- Cryptogamy, 3- Vegetal Biodiversity and Biosystematic, 4- Aquatic vegetal resources.
The Laboratory of Entomology (Dept. Biology, Section Zoology, Univ. Autónoma de Madrid) consists of seven persons involved in different projects related to faunistics, biology and ecology of butterflies (Papilinoidea and Hesperioidea, Lepidoptera [4 researchers]), weevils (Coleoptera, Curculionoidea [1 person]), and springtails (Collembola [2 persons]).
Each of the 'subteams' manages a small comparative collection; these are not formally organized, inventoried, or interlinked. Each of the collections is managed by the users, there is not a person in charge or a centralised database.
The vascular plant collection basically houses the plants results of the different works carried out in NE Iberian Peninsula (principally in Girona districts). Consequently, it is the most important herbarium for this area. The researches of this herbarium collabore with the ORCA project (Chorology of the flora of Catalan countries) and with the Flora Iberica project. The HGI collection increases with donations of old herbariums, as J. Isern herbarium.