PRINCIPAL PLANTS OF ECONOMIC VALUE. 189 



Common Name. 



Botanical Name. 



Native Country. 



Fenugreek 



Trigonella Fcenum-grceaim 



Mediterranean regions 



Foxglove 



Digitalis purpurea 



Europe 



Gamboge 



Garcinia Morellai 



Siam and Cochin China 



Gentian 



Gentia7ia lutea 



Alps of Europe 



Guaiacum 



Guaiacum officinale 



West Indies and Tropi- 

 cal South America 



Hellebore, or 



Helleborus niger 



Europe 



Christmas 







Rose 







Hemlock 



Conium maculatum 



Europe, Asia, Africa 



Henbane 



Hyoscyamus niger 



Europe, Asia, Africa 



Horehound 



Marrubittm vulgare 



Europe and Asia 



Ipecacuanha 



Cephaelis Ipecacuanha 



South America 



Jalap 



Ipomxa (Exogonium) purga 



Mexican Andes 



Lettuce 



Lactuca virosa 



Europe 



Mandrake 



Mandragora officinarum 



Europe and Asia 



Mezereon 



Daphne Mezeretim 



Europe 



Nux-Vomica 



Strychnos Nux-vomica 



India, Cochin China, 

 and North Australia 



Opium 



Papaver somnifertim 



Asia 



Orris-Root 



Iris germanica and Floren- 

 tina 



Europe and Asia 



Peruvian, or 



Cinchona officinalis, etc. 



South America 



Officinal Bark 







Physic Nut, or 



Jairopha curcas 



South America 



Pinhoen Oil 







Plant 







Quassia 



Quassias amara and excelsa 



South America and West 

 Indies 



Queensland 



Alstonia constrict a 



Queensland 



Fever Bark 







Rhubarb 



Rheum officinale and other 

 species 



China 



Rue 



Ruta graveolens 



Levant 



Sarsaparilla 



Smilax, various species 



South America, India, 

 China, Australia 



Sassafras 



Laurus sassafras 



North America 



Scammony 



Convolvulus Scamonia 



South Europe, Asia, and 

 North Africa 



