Notes on various plant species, for which are given the 'mater' and 'pater', or female and male plants which make up a hybrid plant. Some of these appear in the dissertation "Plantae hybridae", defended on 23 November 1751 by Johan Johansson Haartman (1725-1787), an essay on plant hybridization in nature, acknowledging fertilization of one species by pollen of another, and reporting some fertile intergeneric crosses.
The latest book cited are "Flora Suecica", 1745, and "Hortus Upsaliensis" also 1745.
This is probably an early draft of the dissertation, as the published version contains different species than the draft.

On the reverse, notes on various genera and species of plants, with drawings of leaves.