Drawings and notes to illustrate the formation of flowers and leaves, tracing the development of new buds from 1766 to 1769.
p. 5 includes a drawing illustrating the different layers of a plant stem: cortex, liber, lignum and medulla.

Linnaeus expressed some of the ideas developed here in the dissertation "Prolepsis plantarum", defended 22 December 1760 by Henrik Ullmark (1740-1771).

A similar drawing for the years 1749-1750 can be found in the manuscript "Materia medica e regno vegetabili": LM/LP/MED/1/4/7