[The Genus Phlegmacium (Slimeheads)] addressed Phlegmacium, at the time considered a genus but now considered part of Cortinarius, and was published in 1960 as part of the series Die Pilze Mitteleuropas [The Fungi of Central Europe]. Unlike the previous three books in the series, which were all written by German authors, the work addressed mushrooms that were of less interest to amateur mycologists; for instance, Phlegmacium was not considered to contain any significant edible species. The book drew upon Moser's expertise concerning mycorrhizal relationships. It listed 166 species, including some "exotic" taxa. Some of the listed species were described for the first time in that volume. The illustrations, which came in the form of coloured plates, were mostly Moser's own work; Singer described these in a review of the book as "both in original execution and reproduction among the best that have been published". Discussing the book as a whole, Singer said that the volume, "outstanding for its good print, attractive appearance, and interesting contents, should be present in every mycological library". In 1963, Moser published a second work in Kleine Kryptogamenflora von Mitteleuropa, Ascomyceten (Schlauchpilze) [Ascomycota (Sac Fungi)]. This work was a monograph on the Ascomycota, focussing on the "Discomycetes". Though not as well known as his earlier book, it was well received in the mycological community. Korf, reviewing the work for Mycologia, said that "the book belongs on the shelf of every mycological library in Europe", praising the "[e]xcellent, workable keys to the orders, families, genera, and European species". Korf wrote that, "[i]f a single fault can be found, it is surely the lack of documentation provided". However, a combination of a lack of time and Moser's comparative lack of expertise in ascomycetes prevented subsequent editions of the work. Moser was promoted to Associate University Professor in 1964. Two years later, the Faculty of Science of the University of Innsbruck recommended that a chair of microbiology should be created at the Botanical Institute in Innsbruck. The Federal Ministry of Education accepted the recommendation. Moser was the only candidate for the position, and was unanimously named by a number of leading European botanists and mycologists for the post in 1967. Moser was promoted the following year. The president of the Austrian Mycological Society from 1970, Moser took up the position after the death of the previous post-holder, the mycologist Kurt Lohwag, who had, in turn, taken it up after