HITCHCOCK PLANTS OF AMES, IOWA. 53 I 



Onoclea sensibilis, L. Spec. 

 Wet places; not uncommon. 



Osmunda Claytoniana, L. Spec. 



Woody ravines ; scarce. 

 Botrichiuin Virginiauum, (L.) Swartz, Jour. f. d. Bot. ii. 1800.— 

 Osmunda Virgi?iiana, L. Spec. — B. Virginicum, Willd. Spec. v. 

 Rich woods : scarce. 



LIST OF THE MORE IMPORTANT WORKS REFERRED TO IN THE CATA- 

 LOGUE, PRECEDED BY THE ABBREVIATIONS USED. 



Ait. Hort. Kew. : Aiton, W. — Hortus Kewensis, 3 vols. 1789; 2d ed. 

 Aiton. W. T. (^it. f.). 5 vols. 1810. 



Bigel. Fl. Bost. : Bigelow, J.— Florula Bostonensis, 1814; 2d ed., 1824; 

 3d ed.. 1840. 



B.S.P. Cat. : Britton, N. L., Sterns. E. E., and Poggenburg, J. F.— 

 Preliminary Catalogue of Anthophyta and Pteridophyta, * * * within 100 

 miles of New York City. 1888. 



Darl. Fl. Cest. : Darlington, W. — Florula Cestrica, 1826; 2d ed.. 

 Flora Cestrica. 1837; 3d ed., 1853. 



DC. Prod. : DeCandolle, A. P. and A. — Prodromus Systematis Natu- 

 ralis Regni Vegetabilis. i, 1824; ii, 1825; iii, 1828; iv, 1830; v. 1836; vi. 

 1837; vii, 1. 1839; vii. 2. 1838; viii, 1844; ix, T845; x. 1846; xi, 1847; 

 xii, 1848; xiii. 1. 1852; xiii, 2, 1849; XIV - l8 56; xv« 1, 1864; xv. 2. 1866; 

 xvi, 1. 1869; xvi. 2. (p. 1-160) 1864; xvi, 2 (p. 161-end), 1868; xvii, 1873. 



DC. Syst. : DeCandolle, A. P. — Regni Vegetabilis Systema Naturale. 

 i, 1818; ii. 1821. 



Ell. Sk. : Elliott. S. — A Sketch of the 'Botany of South Carolina and 

 Georgia, i, 1821 ; ii. 1824. 



Gray, Man. : Gray, Asa — Manual of the Botany of the Northern United 

 States. 1848; 3d ed.(?) 1857; 5 th ed -> l86 7 5 6th ed -- l8 9°- 



Gray, Syn. Fl. : Gray, Asa — Synoptical Flora of North America ; i. 2. 

 1884; »i i- 188; Suppl., 1886. 



Hook. Fl. : Hooker, W. J. — Flora Boreali-Americana. i. Pt. 1, 1829; 

 i. Pt. 2 cV' 3, 1832; ii. 1840. (Ex notes in Dr. Engelmann's copy.) 



Kunth, Enum. : Kunth, K. S. — Enumeratio Plantarum omnium hucus- 

 que cognitarum. i, 1833; Suppl., 1835; ii, 1837; iii. 1841 ; iv, 1843. 



Lam. Diet. : De la Marck, J. B.— Encyclopedic Methodique. i. 1783; 

 ii. 1786; iii. 1789; iv, 1797; v, (vols, v to xiii by J. L. Poiret.) 1804; vi. 

 1S04: vii. 1806; viii & ix. 1810; x. 1811 ; xi, 1813; xii, 1816; xiii, 1817. 



