268 



PENNYPACKER— ON THE BEACH PLUM 



1. Bailey, L. H. 



2. Beck, L. C. 



3. Bigelow, Jacob 



4. Britton, N. L. 



5. Britton and Brown 



6. Chapman, A. W. 



7. Curtis, S. and 

 Hutchinson, J. 



8. Darby, John 



9. De Candolle, A. P. 



10. Don, George 



11. Eaton and Wright 



12. Ehrhart, Fred. 



13. Elliott, Stephen 



14. Emerson, G. B. 



15. Farlow, W. G. 



16. Gray, Asa 



17. Loudon, J. C. 



18. Macfarlane, J. M. 



19. Marshall, Humphrey 



20. Michaux, Andreas 



21. Nuttall, Thomas 



22. Pursh, Frederick 



23. Roemer, M. J. 



24. Small, J. K. 



25. Spach, Edouard 



26. Sprengel, Curtis 



27. Stone, Witmer 



28. Torrey, John 



29. " 



30. Torrey and Gray 



VI. Bibliography 

 An Account of the Cultivated Native Plums and Cherries. 

 Bull. 38, Cornell Exp. Sta., 1892. 

 Botany of the Northern and Middle States, 1833, 95. 

 Florula Bostoniensis. 2d edition, 1824, 193. 

 Manual of the Flora of the Northern States and Canada, 

 1901, 524-5. 



An Illustrated Flora of Northern United States, Canada, 

 etc., 1913, Vol. 2, 325. 



Flora of the Southern United States. 3d edition, 1897, 

 131. 



Botanical Magazine, 4th series. Vol. 5, 1909, Tab 8289. 



Botany of the Southern States, 1855, 299. 



Prodromus Systematis Naturalis Regni Vegetabilis, Vol. 



2, 1825, 533. 



Miller's Gardeners Dictionary, Vol. 2, 1832, 499. 



North American Botany. 8th edition, 1840, 189, 377. 



Beitrage zur Naturkunde und den damit verwandten 



Wissenschaften besonders der Botanik, Chemie, Haus und 



Landwirthschaft und Apotheker kunst. Book 4, 1789, 17. 



A Sketch of the Botany of South Carolina and Georgia. 



Vol. 1, 1821, 543. 



Trees of Massachusetts, 1846, 449. 



Bulletin of the Bussey Institution, 1876, 440-453. 



New Manual of Botany, by Robinson & Fernald. 7th 



edition, 1908, 498. 



Arboretum et fruticetum Britannicum, Vol. 2, 1838, 691. 



The Beach Plum, Viewed from Botanical and Economical 



Aspects. Contributions from Bot. Lab. U. of Pa., Vol. 



2, 1904, 216-230. 



Arbustum Americanum, 1785, 112. 



Flora Boreali-Americana, Vol. 1, 1803, 284. 



The Genera of North American Plants, 1818, 302. 



Plants of North America, Vol. 1, 1814, 332. 



Synopses Monographicae. Fas. 3, 1847, 57. 



An Apparently Undescribed Species of Prunus from 



Connecticut. Bull. Torr. Bot. Club. 24, 1897, 44-45. 



Histoire Naturelle des Vegetaux, Vol. 1, 1834, 397. 



Systema Vegetabihum, Vol. 2, 1825, 476. 



Report of the New Jersey State Museum, 1910, 491. 



Compendium of the Flora of the Northern and Middle 



States, 1826, 199. 



Natural History of New York. Part 2, Botany, Vol. 1, 



1843, 194-195. 



Flora of North America, Vol. 1, 1838, 408. 



