I am particularly indebted to Professor R. Domac, Dr V. Hrsak, Z. Lovasen-Eberhard M.S., A. Z. Lovric M.S., G. Lukac M.S., Professor Lj. Markovic, Professor Zi. Pavletic, Professor N. Segulja and Dr. I. Sugar for their critical reviews of the General Remarks, the Basic Taxa Treatment Criteria, Regulations and the internal organisation of the Check-list.
I am also grateful to Professor H. Niklfeld for his instructions on the system of coding, materials and support.
I would like to thank Professor R. Domac for the co-ordination of the Croatian nomenclature and an insight into the new edition of the Small Flora of Croatia.
Finally, I am grateful to D. Mihelj B.S. for his efforts in the technical organisation of the Check-list.