534 PRACTICAL BOTANY 



Sambucus niger, the common Elder : young stems, May or 

 June, spirit, 85. 



Saxifraga, various species : leaves, for chalk glands, 142. 



*Scilla nutans, the wild Hyacinth : flower, 193. 



*Sedum acre, the common Stonecrop : leaf, fresh, 136. 



*Selaginella Martensii: commonly cultivated as " Lycopodium, " 

 in green-houses ; whole plant, 261, &c. 



*Solanum tuberosum, the Potato : tuber, fresh, 44 ; young, and 

 treated with picric acid and alcohol, 220. 



Sphagnum, the genus of Bog Mosses, common on every moor ; 

 to be used fresh, or in alcohol (p. 357). 



*Spirogyra, a genus of floating, filamentous, fresh-water Alg*, 

 common in still ponds or streams, and slimy to the touch : to be 

 used fresh, if possible (p. 442). 



*Sporodinia, a Fungus which grows parasitically on the larger 

 Agarics, and not uncommonly found on Boletus in autumn 

 (p. 500). 



Stachys, sp. : shoot, 57. 



*Stellaria Holostea, the common Stitch wort : flowers, in spring, 

 188. 



*Stellaria media, the Chickweed : fresh ovaries, various ages, 

 summer, 206. 



*Stryclmos Nux-vomica : seeds may be obtained from druggists ; 

 214. 



Sunflower (see Helianthus). 



Sycamore (see Acer}. 



*Syr'mga vulgaris, the common Lilac : winter ; buds, 83. 



* Taraxacum ojficinale,ihe common Dandelion : root, preserved 

 in spirit, 118 ; capitulum, 193. 



*Taxus baccata, the common Yew : shoot, 230 ; leaf, 247 ; 

 root, 250 ; reproductive organs, in spirit, 259. 



Thuja: shoot, 230. 



Tilia europcea, the Lime-tree : four-year-old stem, 166. 



*Tomato : ripe fruit, fresh, 199. 



Tradescantia, sp. : commonly grown in botanic gardens ; 

 staminal hairs, fresh, 84. 



Trianea bogotensis : an exotic floating plant, grown in botanic 

 gardens ; roots, with hairs, 33. 



