Hieracium pallidum subsp. aetnense (Asteraceae), a new subspecies from Sicily (Italy), with notes on the taxonomy of H. pallidum Biv.

Hieracium pallidumsubsp. aetnenseGottschl., Raimondo & Di Grist. is described and illustrated.H.pallidumis considered as an intermediate species betweenH. schmidtiiandH. racemosum(“schmidtii>racemosum”) and is placed inH.sect.Grovesiana. By consequence,H.lanudaeGottschl. is transferred toH. pallidumasH. pallidumsubsp.lanudae(Gottschl.) Gottschl., Raimondo & Di Grist. A key for the three recognised subspecies ofH. pallidumis provided. [ABSTRACT FROM AUTHOR]