316 



IKDEX. 



Root, the base of the plant, 13, 107. 



Root, axial and inaxial, 50. 



Rootlets, divisions of the root, 13. 



Root-stock, the rhizome. 



Rosa, Rose, 113. 



Rosacese, Roseworts, 115. 



Rostrate, beaked, with a beak. 



Rosaceous corolla, rose-like,viz., 

 with 5, regular, quiucuncial 

 petals. 



Rotate (corolla), mon- 

 opetalous, wheel- 

 shaped, 171. 



Rubus, 116. 



Rudiment, the beginning of a thing. 



Rugous, wrinkled, 206. 



Rue Anemone, 60. 



Rue, Meadow, 60. 



Rumex, 203. 



Runner, a prostrate branch, 104. 



Runcinate, hooked backward, 143. 



Rush, 264. 



Russellia, 176. 



Rye, 279. 



Sabal Palmetto, 223. 



Safflower, 246. 



Saffron, 147, 246. 



Sage, 180. 



Sagittate, arrow-shaped, 98, 260. 



Sago Palm, Sagus, 228. 



Salsify, 147. 



Salver-shaped corolla, a flat 

 border with a slender tube, 

 like Phlox. [fruit, 191. A 



Samara, a simple, winged lfj\ 



Sanguinaria, 64. /Mj 



Sapmdacese, Sapindtis, 195. |J^ 



Saponaria, 83. 



Sarraceuia, 158. 



Scabrous, rough, 142. 275, 



Scales of the involucre, 138 



Scale-mosses, 27. 



Scammony, 188. 



Scarious, dry and translucent, 138, 244. 



Scape, a radical flower-stalk, 56. 



Scape-like, stem with diminished leaves. 



Scilla, 258. 



Scientific Names, XJse of, 18. 



Scorjioid raceme, rolled inward, 

 and unrolling as it blossoms. 



Scrophulariaceae, 174. 



Sea-weeds, 27. . 



Secund, turned to one side, 256. 



Sections, cuttings, 184. 



Sedges, 263. 



Seed, importance of, 33. 



Seed, Composition of, 186. 



Seed, Life of, 185. 



Self-heal, 179. 



Semi (in composition"), half ; as 



Semicordate, half cordate. 



Senegal Gum, 125. 



Senna, 125. 



Sensitiveness, 121. 



Sensitive Plant, 123. 



Sensiv^ra, Hemp, 258 



36pal8, the leaves of the calyx, 31 



Septicidal, opening be- 

 tween the cells. 



Septif 'ragal, valves 

 breaking away from 

 the partitions, which 

 remain in place, 185. 



Septum, a partition. 



Secj^uoya, 221. 



Seiiceous, silky. 



Serotinous, occurring late in the season 



Serrate, saw-edged, 104. 



Serrulate, finely saw-toothed, 14, 171. 



Sessile (sitting), having no 

 petiole or foot-stalk, 37. 



Seta, plu. setae (bristles), 

 perianth of tlie Sedges, 



Shadberry, 116. [270. 



Sheath, the petiole of the 

 Grasses, 271. 



Sheathing petiole, 132. 



Sheep Poison, 157. 



Sheep Sorrel, 203. [274 



Shepherd's Purse, 98, 177 



Shooting Star, 161. 



Showy Orchis, 234. 



Shrub, a small (6-20 ft.), woody plant, 



Silene, 83. 



Silicle, Silique (sil-eke), 

 100, 101. 



Silk Grass, 195. 



Silver grain, the medul- 

 lary rays, 107. 



Simple, of o.»e piece, not 

 compound,«-13. 



Sinuate, margin with round- 

 ed lobes and sinuses. 



Siphonia, 207. 



Sisymbrium, 185. 



Silver-leaved Maple. 192. 



Sleep of plants, 31, 91, 92. 



Slips, cuttings which grow when severed^ 



Snap Dragon, 173, 175. 



Snow Drop, 263. 



Snow Flake, 263. 



Soapberry, 195. 



Soapworts, 83, 195. 



Social Flowers, 135. 



Solidago, 147. 



Solitary inflorescence, 31. 



Solvent trunk or axis, 107. 



Sorrelworts, 203. 



Sorosis, fruit compounded of an inflores 

 cence, as Pineapple. 



Sorus, pi. sori , fruit-dots of Ferns, 22. ^ 



Spadix, a spike with a fleshy rachis, ^4 



Spanish Chestnut. 213. [231. \J, 



Spathe, the bract (colored) sheathing |7 

 a spadix, 231. 



Spatulate, form of a surgeon's spatula, a 



Spearmint, 182. m 



Species, 18. ul 



Specific Characters, 179. Y 



Speedwell, 170. • 



Spike, the flowers sessile on the ra- 

 chis. 



Spikelets, the peculiar clusters in the 

 Grasses, 272. 



Snike, Oil of. 182. 



Spines, woody thorns, 12J. 



[128. 



