plants Article Natural and Historical Heritage of the Lisbon Botanical Gardens: An Integrative Approach with Tree Collections Ana Raquel Cunha 1,2,† , Ana Luísa Soares 2,3,† , Miguel Brilhante 1 , Pedro Arsénio 1 , Teresa Vasconcelos 4, Dalila Espírito-Santo 1 , Maria Cristina Duarte 5 and Maria Manuel Romeiras 1,5,* 1 Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal;
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[email protected] (M.B.);
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[email protected] (D.E.-S.) 2 Research Centre in Biodiversity and Genetic Resources (CIBIO/InBIO), School of Agriculture, University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon, Portugal;
[email protected] 3 Jardim Botânico da Ajuda, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Calçada da Ajuda, 1300-011 Lisboa, Portugal 4 Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Calçada da Ajuda, 1300-011 Lisboa, Portugal;
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[email protected] † Equal contribution as first author. Abstract: Botanical gardens have long contributed to plant science and have played a leading role in Citation: Cunha, A.R.; Soares, A.L.; ex situ conservation, namely of threatened tree species. Focusing on the three botanical gardens of Brilhante, M.; Arsénio, P.; Lisbon (i.e., Botanical Garden of Ajuda—JBA, Lisbon Botanical Garden—JBL, and Tropical Botanical Vasconcelos, T.; Espírito-Santo, D.; Garden—JBT), this study aims to reveal their natural heritage and to understand the historical Duarte, M.C.; Romeiras, M.M.