Sending first part of second volume of his "Species plantarum", asks if Smith received the first volume and diploma of Society of Natural Scientists. Was unaware that Smith had named a genus 'Persoonia', in honour of [Christiaan Hendrik] Persoon; he also named a genus after Persoon in his "Species plantarum", proposes alternative 'Marshallia' for his, in honour of L B Marshall of Biberstein. Sending article from "Transactions of the Natural Scientists".