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PREFACE. 
. The Books nsed for this Catalogue^ are 
Flora Virginica Gronovii, 1762. 
Catalogue of North American plants. Forster, 1771. 
Flora Caroliniana. Walter, 1788. 
Linnsei Species Plantarum. Willdenovii, 1797 — 1806. 
Synopsis Plantarum. Persoon, 1805. 
Hortus Cantabrigiensis. Donn, 1804, 1809. 
Hortus Kewensis. Alton, — first, and part of second edition. 
Enumeratio Horti Berolinensis. Willdenovii, 1809. 
Acharii Lichenographia. 1810. 
Synopsis Fungorum. Persoon. 
Schxffer, Batsch, Bolton, Fungi. 
Flora Boreali Americana, Michaux ; and many others. 
Hedwigii Stirpes et Species Muscorum. 
I add, with gratitude, tlie names of my American friends and correspondents, 
who have generously assisted me, by communicating specimens or seeds. 
William Baldwin, M. D. from Delaware and Georgia. 
Benjamin S. Barton, Professor at Philadelphia. 
William Bartram, Botanist. 
Romein Beck, M. D. Albany, N. Y. 
Jacob Bigelow, M. D. Boston. 
Peter Billy, from Virginia. 
John Bricknell, M. D. from Georgia, deceased. 
Isaac Cleaver, M. D. Philadelphia. 
Zaccheus Collins, Philadelphia. 
Menasse Cutler, D. D. Massachusetts. 
Gustavus Dallman, North Carolina. 
Rev. Christian Denke, Nazareth and Canada. 
Caspar Wistar Eddy, M. D. New York. 
Stephen Elliott, Esq. from Carolina and Georgia. 
Aloysius Enslin, travelling Botanist, deceased. 
Mrs. Anna Rosina Gambold, from Cherokee. 
Jacob Green, A. M. Albany, N. Y. 
William Hamilton, Esq. from his Botanical Garden, deceased. 
Frederick Kampman, M. D. from Pennsylvania and Jersey. 
Matthias Kin, Nurseryman, and Collector. 
Rev. Samuel Kramsch, North Carolina. 
John Lyon, Nursery and Seedsman, and Collector. 
Bernhard M’Mahon, from his Botanical Garden. 
James Mease, M. D. Philadelphia, Georgia. 
S. I.. Mitchell, Professor, New York. 
Henry Moore, from Tennessee and Natehez. 
P. E. Muhlenberg, New York and Jersey. 
Christopher Miiller, M. D. from Harmony, West Pennsylvatiia. 
Frederick Pursh, from Jersey. 
Rafinesque Schmalz, from Jersey, Delaware, and Pennsylvania. 
David L. de Schweiniz, Salem, North Carolina. 
Joseph Van der Schott, travelling Botanist, deceased. 
Rev. Jacob Van Vleck, from Pennsylvania. 
HEALTH AND PROSPERITY TO THEM AND ALL LOVERS OF BOTANY ! 
Lancaster^ Penns, 
