An influential professor of botany at Cambridge, John Stevens Henslow (1796-1861) revived his department and helped develop the current University Botanical Garden for study, teaching and conservation. A mentor to the young Darwin, he proved an educational innovator, initiating the study of individual sciences at Cambridge and practical examinations at the University of London. While rector of Hitcham in Suffolk, he took an interest in local politics, welfare and popular education. This led to the publication in 1860 of this catalogue, which collated the observations and work of amateur botanists. Henslow was the overarching academic and technical consultant while Edmund Skepper is credited with organising and collating the information from the contributors. Catalogued taxonomically, each plant's Latin and common name is given along with its physical description, common locations, rarity or commonality, and periods of flowering or germination. It remains a valuable guide for amateur botanists and naturalists.