In addition to detailed floristic surveys in Banat, Bulgaria, Montenegro and particularly in Serbia, on all his journeys Pancic collected the plants enriching his herbarium with highly precious comparative material . Thus, today Pancic's herbarium collection contains more than 1,000 exsiccates which he collected during his journeys through present day Croatia (200 exsiccates from the regions of Lika and Dalmatia), Austria (about 100 exsiccates from the surrounding of Vienna), Hungary (over 500 exsiccates from the surrounding of Pest and Buda) and Italy (about 200 exsiccates from the surrounding of Florence, Naples, Trieste and Venice).