Article

In Portugal there are several remarkable botanic gardens and parks. The aim of this communication is to present some of the taxonomic studies don e by the authors in "Jardim-Museu Agricola Tropical" (Tropical Agricultural Museum-Garden), "Tapada da Ajuda" (Royal Park of Ajuda), "Parque da Pena" (Pena Park) and "Estufa Fria de Lisboa" (Cold Greenhouse of Lisbon). These spaces are located in Lisbon, except the Pena Park that is located in Sintra, near Lisbon. Ali these places have historical value. Plant collections of Mediterranean Region are kept in the above mentioned spaces. Species and the infraspecific taxa are indicated, as well their wild, some of their uses and their location in the mentioned areas. These Botanic Gardens and Parks are privileged spaces for the preservation of biodiversity ex situ and in situ The potentiality to conserve species from several regions of the world, namely from the Mediterranean Region, makes these green spaces very important for research, as well as for didactic and educational programmes.