His exsiccata of Rhineland fungi, "Fungi rhenani exsiccati", contained a number of type specimens and taxonomic information on novelties of taxa that he proclaimed [2][3] (Edit I Fascic. I-XXVII, 1863–75, edit. Fascic II. I-XXI, 1871–75).
He was also the author of:
"Enumeratio Fungorum Nassoviae", Series I, (1860),[4] an exsiccata-like series with Catalog of fungi from Nassau.[2]
"Symbolae mycologicae, Beiträge zur Kenntniss der Rheinischen Pilze", (1869–70); three supplements (1871, 1873 and 1875) - Contributions to the knowledge of Rhenish mushrooms.[1]