Instytut Botaniki im. W. Szafera Polskiej Akademii Nauk - W. Szafer Institute of Botany, Polish Academy of Sciences
CONTENTS - SPIS TREŚCI
FOREWORD • PRZEDMOWA
Almost half a century ago, Prodromus Florae Hepaticorum Poloniae (Szweykowski 1958) was published, and since that time it has served generations of Polish bryologists. The great advances that have taken place in the taxonomy and nomenclature of liverworts have made that important work somewhat outdated, and thus the need for a newer version arose. Professor Jerzy Szweykowski was one of the very first authors to answer the cali of the Biodiversity of Poland series editors. He drafted the manuscript of a volume devoted to liverworts, but then his tragic and untimely death suspended editorial work for years. Some smali chapters and supplementary material remained to be added to the work he submitted. The editors asked Dr. Henryk Klama, student and collaborator of Professor Szweykowski, to take over the work and prepare the bibliography, include Polish names of taxa, and compile an index of Polish names. He also introduced a few necessary comments and explanations, along with a systematic overview of Iiverworts and hornworts based on current literature. The core of Professor Szweykowski's work remained unchanged; neither his text nor his concept of the book's framework have been altered. We believe that, although somewhat diverging in form from the other volumes, this work is a worthy addition to the present series and a large contribution to the advancement of Polish bryological studies.
For the sake of precision, the orginal title was changed slightly: following Dr. Klama's suggestion, 'hornworts' were added as a separate group, to reflect currently accepted systematic concepts.
In the form submitted by Professor Szweykowski, the work includes a list of 254 species of liverworts and hornworts occurring in Poland, belonging to 68 genera.It is with a sense of deep gratitude to the late Professor Jerzy Szweykowski that we publish this last major fruit of his endeavours and present it to the interested reader.