Aguiar, CarlosMonteiro-Henriques, T.Sánchez-Mata, D.2014-10-272014-10-272013Aguiar, Carlos; Monteiro-Henriques, T.; Sánchez-Mata, D. New contributions on flora and vegetation of northeastern Portugal ultramafic outcrops. Lazaroa. ISSN 0210-9778. 34, p. 141-150.0210-9778http://hdl.handle.net/10198/11076In this work we present some syntaxonomic novelties on the vegetation of the referred ultramafic outcrops focused on three new associations: Jonopsidio abulensis-Sedetum maireani, Armerio daveaui-Agrostietum castellanae and Seseli peixotoani- Avenuletum lusitanicae; in addition, a new nomenclatural combination of an endemic taxon from the Morais massif (Armeria langei subsp. marizii) is proposed. We also clarify the phytocoenotic structure of the Portuguese vegetation series through a simple diagrammatic representation, which is then applied to one unique climatophilous vegetation series present in the ultramafic rocks of northeastern Portugal: Genisto hystricis-Querco rotundifoliae SigmetumporUltramafic vegetationUltramafic floraUltramafic vegetation seriesArmeria langei subsp. mariziiPortugaljournal article10.5209/rev_LAZA.2013.v34.n1.43642