Thanks Smith for determining the plants he sent in his last letter, and sends further plants for Smith's opinion. The 'Lichen vinellus' he sent with his last letter is part of a collection of Spanish cryptogams owned by three pupils of [Antonio José] Cavanilles, Clemente being one of them, and described in "Anales de Ciencias Naturales" [Spanish natural history journal, 1799-1804]. Will revisit England on his return from Africa so as to consult Smith before publishing his findings. "English Botany" has cleared some doubts he had with lichens. Offers to collect any plants Smith may desire from Africa.