Su Alcune Piante Ibride Raccolte Nella Regione March-Apriligiana

On some hybrid plants gathered in the March-Aprile region. — The A. reports the occurring in the March-Aprile of some interspecific or intergeneric hybrids not recorded in this region till now; they are: Polygonum × condensatum F. Schultz (= P. mite Schrank × P. persicaria L.), Centaurea rupestris L. × C. scabiosa L., × Danthosieglingia breviaristata (Beck ex Vierh.) Domin (= Danthonia provincialis DC. × Sieglingia decumbens (L.) Bernh.), and Orchis × dietrichiana Bogenh. (= Orchis tridentata Scop. × O. ustulata L.). Particulars are given about the characters of the specimens gathered, and about the localities where they were found and the distribution of the different taxa in the region and in Italy. Special attention is given to × Danthosieglingia breviaristata as it is a little known taxon, almost not dealt with in publications (at least as a hybrid) as regards the Italian Peninsula.