INDEX. 



3&7 



Rose, the character of the gem 

 Rosaceous family . 

 Rudbeckia, the genus of 

 Ruppia, the generic character 



25 & 114 



24 



173 



64 



Sap, or common juice ; its motion and analogies in the 



animal kingdom .... 241 



its character, and the changes it experiences from fer- 

 mentation — sometimes boiled down for sugar . 242 



. its chemical analysis by Vauquelin . . 243 



consists principally of water with carbonaceous matter, 



acetate of potash, and carbonate of lime . . 244 



Sage (Salvia), its peculiar character, &.c. 16, 47, h 127 



Saintfoin, &.c. (Hedysarum), the genus of . . 156 



Scabious (Scabiosa), allied to the Teazel . . 60 



Sclerotium Cocos ..... 216 



Scorpion-grass, Mouse-ear (Myosotis), the genus of . 67 

 Sea-weeds, he. (Algae), the order of . . . 214 



Sedge-grass (Cares), the genus of ... 190 



Segregata, the order of, in Syngenesia . . 176 



Self-heal (Prunella), the genus of 128 



Shave-rush (Equisetum), the genus of . . 213 



Shepherd's-purse (Thlaspi), allied to Cress . . 138 



Shield Fern (Aspidium), the genus of . . 211 



Sida, the generic character .... 146 



Side-saddle flower (Sarracenia), its genus . . 118 



Silicle, or Short pod, how distinguished . . 9 



Siliculosa order of Tetradynamia . . . 136 



Siliquosa order of do. ..... 139 



Silk-weed, Swallowwort (Asclepias), the genus &.c. 76, 77 

 Silphium, the genus of . . . . 176 



Silique, what kind of pericarp ... 8 



Skullcap (Scutellaria), the genus of 128 



Skunk-Cabbage (Sym pi o carpus), its genus . . 62 



Smilacina, allied to Convallaria . . . .86 



Snake-head (Chelone), the genus of . . 133 



Snow-berry (Symphoria) the genus of . .74 



Snowdrop (Galanthus), the genus of . . . 87 



SolanecB, Solanum, the genus of the Potatoe . . 71 



Solomon's-Seal, Lily of the Valley (Convallaria), the genus 86 

 Sow-thistle (Sonchus), how distinguished from Lettuce 163 

 Speedwell (Veronica), its generic character . . 47 



Spiderwort (Tradescantia), the genus of 90 



Spurge (Euphorbia), the genus of, and some species . 188 

 Stanleya, its generic character . . . 141 



Star-flower (Aster), the genus of ... 170 



Stems, Jlnalomy of; — their classification . 250 



31 



