Acta Botanica 31. (1985)

ACTA BOTANICA A QUARTERLY OF THE HUNGARIAN ACADEMY OF SCIENCES Acta Botanica publishes original reports on botanical subjects in English, French, German, Spanish and Russian Acta Botanica is published in yearly volumes of four issues by AKADÉMIAI KIADÓ Publishing House of the Hungarian Academy of Sciences H-1054 Budapest, Alkotmány u. 21. Manuscripts and editorial correspondence should be addressed to Acta Botanica 1363 Budapest P.0. Box 24 Subscription information Orders should be addressed to KULTUR A Foreign Trading Company 1389 Budapest P.O. Box 149 or to its representatives abroad Acta Botanica is indexed in Current Contents INSTRUCTIONS TO AUTHORS Papers will be considered for publication in Acta Botanica Hungarica only if they have not previously been published or submitted for publication elsewhere. They may be written in English, French, German, Russian or Spanish. From Hungarian authorspapers are also accepted in Hungarian. Manuscripts should be sent to Prof. Pál Jakucs editor-in-chief Ecological Department, Kossuth Lajos University, H-4010 Debrecen Form of manuscript Manuscripts should be typewritten in duplicate, double-spaced, 25 lines with 50 letters on each page. Articles should in general not exceed 25 typed pages tables and illustrations in­cluded. Acceptance depends on the opinion of one or more referees and the decision of the Editorial Board. Papers accepted for publication are subjected to editorial revision. or to Prof. Attila Borhidi managing editor Botanical Institute of the Hungarian Academy of Sciences H-2163 Yácrátót