INDEX. 



317 



Spiral arrangement of leaves, 193. 



Spiral vessels or cells, 189, 225. 



Spirea, 117. 



Spores, the seed of the Cryptogams, 14,22, 



Sporangia, tlie vessels contaiuing spores, 



Spotted Cliiiuaphila, 154. [22, 



Sprekellia, Mi. 



Spring Beauty, 39. 



Spruce, 218. 



Spur, a lloral appendage, or nec- 

 tary, !»7, 235. Columbine. 



Spurge, Spotted. 203. 



Spurgeworts, 200. 



Squills, 258. 



Sciuirting Cucumber, 95. 



Stamens, 32. 



Staminate flower, 1.37. 



Standard, or bauuer, 118.' 



Stapelia, im. 



Staphylea. 195. 



Star Grass, 258. 



Star of Bethlehem, 258. 



Stellaria, 89. 



Stem, the ascending axis. 



Sterile flower, not fruitful, 137, 191 



Stigma discoid— stellate. 



Stigma plumous, as in 

 Grasses. 



Stigma, 32. 



Stigmatic, partaking of 

 the stigma. 



Stings, hollow, poisonous hairs, 104. 



Stipe, the stalk of the ovary, 21. 



Stipels, the stipules of the leaflets, 117. 



Scipitate, on a stipe. ^ 



Stipules, small leaves at base of the fX\ 

 petiole, always in pairs, 75. \^ ) 



Stolon, a runner. ^^. 



Stoloniferou -, producing stolons, 137. ^^ 



StorksbOl, 67. 



Stoma, mouth (of a sporange). 14. 



Stomata, mouths in the cuticle of leaves, 



Strawberrj^, 104. 



Strict, straight and erect. 



Striped Maple, 192. 



Strobile, fruit of the Pines ; a cone. 



Struggle for existence, 14G. 



Style, the middle i)art of the pistil, 32. 



Sub (in composition), under ; in a less 

 degree. 



Subkingdom«, 22. 



Subulate, awl-shaped, 17. 



Succulent, very iuicy and cellular. 



Suflfruticous, partly shrubby (frutex, a 

 shrub), 154. 



Superior (ovary), ovary 

 free. 



Superior (calyx), calyx 

 adherent. 



Su'.'ar Maple, 188. 



Sundew, 104,101. 



Sunflower, 145, 147. 



Sui)6rvolute a?stivation, 183 



Suppression, 194, 209. 



Suspended ovule, growing 

 from the toji of tlie cell. 



Sutural (dehiscence), open- 

 ing at the sutures. 



Suture (sfite-yur), 60, 118- 



Swamp Maple, 192.— Milkweed, 195. 

 Sweet Alyssum, 103.- Flag, 233.— Pea, 117 



—Vernal Grass, 276.— Violet, 75.- Wil 



Ham, 83. 

 Symmetrical, of the same number. 

 Syn (in composition), together. 

 Syngenecious, stamens united by their 



anthers, as in the Composites. 

 Synonym, 103. 

 Sysirinchium, 244. 



! 



Tagetes, 147. 



Tamarind. 125. 



Tannic acid, 223. 



Tapioca, 207. 



Tap root. See Axial root. 



Taraxacum, 144. 



Tawny, fulvous, dull yellowish brown. 



Tea-berry, 147. [seed," 111. 



Tegnien, "inner layer of the coating of a 



Teiidril, an appendage for climb- 

 Teratology, 82. [ing, 119. 



Terete (stem), evenly rounded, 

 cyliudric, 13. 



Terminal, placed at the summit or 

 apex, 14. 



Ternate (leaves, or leaflets), in threes, 47, 



Testa, the outer coat of a seed, ~~ 



Tet-ra-dyn-a-mous, 4 stamens 

 longer than the other 2, 100. 



Thalictrnm, 59. 



Thallus, the cellular body of a 

 Lichen, etc., bearing the fruc- 

 tification. 



Thimble-berry, 116. 



Thistle, 147. 



Thorns. See Spines, 114, 121. 



Throat, orifice of a monopetalous corolla. 



Thyrse, a dense panicle, as in Lilac Horse 



Tigridia, 2^6. [Chestnut. 



Toad Flax, 173. 



Tolugum, 125. [hairs, 110. 



Tomeiitous, with short, dense, woolly 



TouLra Bean, 125. 



Toothroot Cress, 101. 



Top-sha])ed, inversely conical. 



Torrey, Dr. John, 205. 



Torus, the basis of a flower, 31. 



Tnig'acanth, 125. 



TragO])6gon, 147. 



Tree, 107. 



Tri (in composition), three ; as 



Triandrous, having 3 stamens. 



Tric'oior (three-coloretl), 75. 



Trient^lis, 165. 



Tri fid, cut deeply in 3 parts. 



Trilbliolate. with 3 leaflets. 



Trillium, 246. 



Trilliacea3, 2.51. , ^ 



Tril-o-bate, having 3 lobes. 



Triui-e-rous, 3-part- 

 ed. 



Tri pinnate, thrice 

 l)innate. 



Tricpietrous, three- 

 angled, equitant aestiva- 

 tion, 2(50. 



Tri-ter-nate, thrice ternate, 58, ' 



