Helichrysum plicatum (Asteraceae) - a new species for the Bulgarian flora
Armillaria cepistipes and A. gallica (Agaricales, Tricholomataceae) in Italy
Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia: a database
Mediterranean annual grasses in the Slovenian flora
Mediterranean floristic elements in the ruderai flora of Belgrade (Yugosiavia)
A cytoembryological study or Sonchus asper (Asteraceae)
Analysis of phytomass of Balkan pine (Pinus peuce) in communities and in separate individuals at the upper forest border in the Pirin mountains (Bulgaria)
Karyological study of three species of Paeonia (Paeoniaceae) in Bulgaria
The area of Quercus hartwissiana (Fagaceae) and opportunities of its extension in Bulgaria
Wild bees as pollinators of four Gentiana species of Mount Vitosa (Bulgaria)
Morphological and phytochemical adaptations in some species of Achillea sect. Filipendulinae (Compositae) in Bulgaria
Phytogeographical characteristics of the high-mountain flora of Mt Kopaonik (S.W. Serbia, Yugoslavia)
Morphological and phytochemical analysis of Bornmuellera dieckii (Brassicaceae)
Karyology of some species of Alkanna (Boraginaéeae) from Bulgaria
Collections and collectors in the Herbarium Siculum of Palermo