@article{Carvalho_Pontes_Batista-Marques_Jardim_2010, title={A new species of Echium (Boraginaceae) from the island of Porto Santo (Madeira Archipelago)}, volume={67}, url={https://rjb.revistas.csic.es/index.php/rjb/article/view/344}, DOI={10.3989/ajbm.2239}, abstractNote={A new species endemic from the island of Porto Santo (Madeira Archipelago) is described as <i>Echium portosanctensis</i> J.A. Carvalho, Pontes, Batista-Marques & R. Jardim. Morphological studies based on reproductive and vegetative traits revealed a set of diagnostic characters confirming separation of <i>E. portosanctensis</i> from other recognized species at sectional level. A taxonomic diagnosis, a morphological description and illustrations of the new species are provided. Images, distribution maps, ecological data and a key for Madeiran species of <i>Echium</i> are also provided. Diagnostic characters, conservation status, threats and speciation mechanisms are discussed. In addition, reports on the occurrence of <i>E. candicans</i> on the island of Porto Santo are also discussed.}, number={2}, journal={Anales del Jardín Botánico de Madrid}, author={Carvalho, José Augusto and Pontes, Tânia and Batista-Marques, Maria Isabel and Jardim, Roberto}, year={2010}, month={Dec.}, pages={87–96} }