22 



Sikkim. Tree ferns, Scott, II, 1875. 



Silene, Watson. II, 1875. 



Silphium albiflorum, II, 1887. 



Sinistrorse. I, 1877. 



Smith, H. H., Brazil, II, 1880. 



Smith, John, Historia Filicum, II, 1878; 



Dames of plants, II, 1882. 

 Smith, Lady, III, 187 7. 

 Smith, Pleasance, III, 1878. 

 Smithsonian Institution, I, 1855. 

 Solidago, I, 1882. 



Sommers. Nova Scotia plants, II, 1877. 

 Sonder, 0. W., Ill, 1884; see Harvey. 

 Sonoma county, California, I, 1859. 

 Sonora, Thurber. I. 1854; Wright, I, 



1853. 

 South Africa, see Africa, South. 

 South America, see America, South; 



see Mitten. 

 Southern states, Chapman, II, 1860, '83 ; 



Darby, II, 1841, '55. 

 Sowerbv, III, 1872. 

 Spach, E., Ill, 1880. 

 Species, I. 1863; Algarum, Agardh, II, 



1864; derivation of, Hohenbiihel- 



Heufler, II, 1871 ; Filicum, see Ferns ; 



not transmutable, II, 1861 ; origin of, 



I, 1860; Darwin, II, 1860; see new. 

 Sphseralcea acerifolia. I, 1874. 

 Sphagnum, Lindberg, II, 1882. 

 Spicilegia Gorgonica. Webb, II, 1852. 

 Spigelia Marilandica, I, 1841. 

 Spinner, see Esenbeck. 



Spirseacese, Maximowicz, II, 1879. 

 Spiranthes Romanzoviana, I, 1873 

 Spongiadas, Bowerbank, II, 1858. 

 Spontaneous generation, I, 1875 ; Child, 



II, 1865. 



Sprague, Isaac, I, 1848 : and G. L. Good- 

 ale, wild flowers, II, 1877, '84. 



Spring. A. F., Ill, 1873 ; Lycopodiaceas, 

 II, 1842. 



Spruce, R., II, 1859, '60; Asteranthos, 

 II, 1859; Hepaticse, II, 1886. 



Squier, E. G., tropical fibres, II, 1862. 



Stamens, I, 1867; Staminody, I, 1870. 



Starch in chlorophyll-grains, II, 1875. 



Statistics of U. S. flora, I, 1856. 



Steele, J. D., see Wood. 



Steel-trap, vegetable, I, 1874. 



Steetz. Ill, 1863. 



Steudel, III, 1857; Glumacese, II, 1854, 

 '56 ; Nomenclator, II, 1841. 



Steven, III, 1864. 



Stewart. J. L., and Brandis, D., India, 

 II, 1875. 



Stocks, III, 1855. 



Strasburger, heterogeneous grafting, 

 II, 1886; polyembryony, II, 1879. 



Straub, Consolations of science, II, 

 1884. 



Streptanthus, I, 1864. 



Structural Botany, I, 1 842 ; Henf rey, 



II, 1846; Koehler, II, 1876. 

 Sturm, III, 1852, '66. 



Sturtevant, E. L., Indian corn, II, 1880. 



Subradical flowers, I, 1876. 



Succession of species, I, 1863 ; DeCan- 



dolle, II, 1863. 

 Suckley, G., see U. S. Govt. 

 Sullivant, W. S., I, 1846, '48, II, 1873, 



III, 1873, '74; mosses, etc., in Gray's 

 manual, I, 1856; Icones Muscorum. 

 II, 1864, '75; — and Lesquereux, Mus- 

 ci, II, 1857, '06. 



Sulphur, Botany of the. Hinds and 



Bentham, II, 1844. 

 Sumatra Camphor-tree. II. 1852. 

 Sunflowers, movement of androecium, 



I, 1884. 



Sweet Potato, I, 1878. 



Sylva, Nuttall, II, 1841, '42. 



Sylvan winter, Heath, II, 1886. 



Sympetaleia, II, 1887. 



Symphoricarpus, I. 1875. 



Synopsis Filicum, Hooker and Baker, II, 



1875; Lichenum, Nylander, II, 1858; 



Gluraacearum, Steudel, II, 1854, '56; 



plantarum, Mueller. C, and Walpers, 



II, 1857. 



Synoptical Flora, I, 1878, '84; Gray, II, 

 1878, '84. 



Synthlipsis, I, 1859. 



Systematic botany, I. 1842; Grisebach, 

 II, 1859; Koehler, II, 1876; prog- 

 ress, Bentham. II, 1875. 



Targioui-Tozetti, III, 1858. 



Talks afield, Bailey, II, 1885. 



Tampico jalap, II, 1870. 



Tasmania, flora, Hooker, II, 1852, '56, 



'58, '60. 

 Tatnall. E., Newcastle Co., Delaware. 



II, 1861. 

 Taurus, Cedars, Hooker, II, 1862. 

 Taxonomy, Caruel, II, 1884. 

 Tea plant, Griffith, II, 1841; Guillemin, 



II, 1841; American, II, 1863. 

 Temperature, effects of. DeCandolle, II, 



1875; and growth, Hoffman, II, 1857. 

 Tendrils, coiling, I, 1858; DeCandolle, 



II, 1877; movements in Curcurbita, 



Penhallow, II, 1887. 

 Tenenffe, Dragon-tree, II, 1868. 

 Tennessee plants, I, 1880 ; Gattinger,. 



II. 1887; Yellow-wood, I, 1865. 

 Tenore, III, 1862. 

 Teratology, Masters, II, 1870 ; Moquin- 



Tandon, II, 1841. 

 Territories, fossil flora, Lesquereux, II, 



1878; natural history, Suckley and 



Cooper, II, 1860. 



