In many cases facing threats to their work skills, these artisans retained a sense of status by developing their botanical skills, collecting specimens, and learning Linnaean names for plants orally even though they knew no Latin.
Not only did it identify about a thousand species of plants and 464 genera, it helped to overturn the established Linnean system of botanical taxonomy.
Access to knowledge also became more systematic, as in the spread of alphabetization, compilations of technical material in encyclopedias, and the Linnaean method of classifying and identifying botanical specimens.
As is often the case with Linnean genera, the concept of Valeriana was wide and included all 16 species of Valerianaceae known at that time.
The core of the poem involves Darwin's playfully personified yet careful description of many flowering plants found in Linnaean taxonomy.