Mez considered the manuscript ready for the printer, as is evident from a handwritten note, and intended only to add corrections in the proof stage. WW II, however, led to the factual abandonment of the "Pflanzenreich" project after publication of Heft 106 in 1943 (the continuation of the Campanulaceae - Lobelioideae treatment of Heft 106 by F. E. Wimmer with Heft 107 in 1953 and Heft 108 in 1968 (Campanulaceae - Lobelioideae and Cyphioideae) being a singular exception). Resources at Berlin were concentrated rather on the completion of the Gramineae treatment in the second edition of the "Natürliche Pflanzenfamilien" (see TL-2).
Mez's Paniceae manuscript survived WW II and is preserved in the archives of the BGBM. In the
late 1980s some sets of xerocopies of the manuscript were produced and sent through Hildemar Scholz to a number of institutions around the globe. Bryan Simon at the
Queensland Herbarium (BRI), Brisbane, organised at the end of the first decade of the 21th century that the
xerocopy they received were digitised for use in the
Scratchpad. The scans were produced by Yucely Alfonso, and
Bryan Simon also kindly provided a digital copy for the archives of the BGBM, which is made available here:
Carl Christian Mez: Gramineae. Tribus Paniceae. Unpublished manuscript (c. 1926–1935) for Engler A. (ed.), Das Pflanzenreich.