 In his time with the institute , Moser continued his taxonomic studies . In 1953 , he published the first edition of his Die Blätter und Bauchpilze ( Agaricales und Gastromycetes ) , a monograph of the Agaricales and Gastromycetes of central Europe , containing 3150 taxa . The work served as an update on Adalbert Ricken 's <unk> für <unk> ( 1918 ) , though reflecting Moser 's taxonomic views , which were highly influenced by Singer . The book was part of a series named Kleine <unk> Mitteleuropa , edited by Helmut <unk> . The work , which became known simply as " Moser " , was updated and republished numerous times over the following decades , and translated into both Italian and English , with the latter translation being sponsored by Roger Phillips . His monograph on the Agaricales was also published separately from this work . René Pomerleau described a 1967 reprint of the Agaricales monograph , containing descriptions of <unk> species , as " probably the most complete and up @-@ to @-@ date descriptive flora of this group of fungi for central Europe " . Die Blätter und Bauchpilze ( Agaricales und Gastromycetes ) became important for the study of biodiversity in and out of Europe , and was a " much used and appreciated field manual " . The work continued to be used as an authoritative reference for several decades ; in 1981 , it was still being called " the most @-@ used and most authoritative handbook on larger European fleshy fungi " . 
