Sent twelve species of Ehrhart and Hoffman's 'Salix'; rarities from the Pyrenees received from [Friedrich] Stromeyer; and a 'Drosera lusitanica' L from Portugal, sent in return for the 'Drosera dichotoma' Smith gave him. Stromeyer focusing his botanic studies on the "geography of vegetables". His own study is "anomalous formations" in vegetables. Thanks for specimens of New Holland [Australian] plants, requests more, lists the plants he has already received. News of botanists: [Christiaan Hendrik] Persoon is in Paris and [Heinrich Adolph] Schrader made professor extraordinary at Göttingen University in addition to director of the Botanic Garden after the regency became displeased with Hoffmann's management.