In this treatise on the flowering plants in the Hortus Botanicus Leiden Hermann coined the term Angiospermae as the name of one of his primary divisions of the plant kingdom. This division included flowering plants possessing seeds enclosed in capsules, distinguished from what Hermann named "Gymnospermae, or flowering plants with achenial or schizo-carpic fruits, the whole fruit or each of its pieces being here regarded as a seed and naked" (Wikipedia article on Flowering plant, accessed 1-2020). Hermann used the term "Angiopolyspermae" on p. 1 of this work. Digital facsimile from Bayerische StaatsBibliothek at this link.