Manuscript interleaved. No title page. 39 folios written on both sides in double columns, with names of plants then known and a mark against such as were in the herbarium. This mark was at first an underscore as in the "Species Plantarum" but from the sixth page onwards the mark consists of a dot placed before the figure in front of each name. Some interleaves torn out. The last 10 interleaves have been used by Linnaeus the Younger for entering diagnoses of plants. Specimen on p. 3