258 



Thlasjyi arvense, L. Cruciferse. Herb and seed: volatile oil. 

 Thuya occidentalis, L. Coniferse, Green parts : volatile oil. 

 Thymus Serpillum, L. Labiatse. Whole plant : volatile oil. 



,, vulgaris, L, Whole plant: volatile oil with Cymen, 



Thymen, Thymol. 

 Tilia Euroixea, L. Tiliacese. Flower : volatile oil. 

 Trachylohium Gcertnerianum, Hayne; T. Hornemanni, Hayne. 



Leguminosse. Exudation of stem : Copal. 

 Triticum repens, L. Graminese. Root : Triticin. 



,, vulgare, Vill, Fruit : Starch ; Gluten with Glutin, 



Mucin, &c. 

 Trop(eolum majus, L. Geraniacese. Whole plant : Tropseolic 



acid. — Seed : volatile oil. 

 Ulmus campestris, L. Urticacese. Leaf: Quinic acid or one allied. 



,, fulva, Mich. Bark : mucilage. 

 Uncaria Gavibir, Roxb. ; U. acida, Roxb. Rubiacese. Leaf : 



Catechu-tannic and Catechuic acids ; Quercetin. 

 Urceola elastica, Roxb. Apocynese. Borneo and Sumatra caout- 

 chouc. 

 Ih^ginia Scilla, ätemh. Liliacese. Tuber: Scillitin; mucilage. 

 Urtica urens, L. Urticaceae. Leaf : Formic acid. 

 Usnea florida, HofFm. Lichenes. Usnic acid. 

 Usnea, several species. Licheniii. 



Vaccinium MyrtiUus, L. Ericaceae. Whole plant : Quinic acid. 

 Vahea gummi/era, Lam.; V. Madagascariensis, Bojer. Apocynese. 



Exudation of stem : Madagascar caoutchouc. 

 Vahea Comorensis, Bojer. Anjonan caoutchouc. 



„ ßorida ( Landolphia florida, Benth.) JSI'iger caoutchouc, 

 with other Vaheas of the section Landolphia. 



„ Heudelotii (Landolphia Heudelotii, A. DC). Cazamanca 

 caoutchouc. 



„ Owariensis (Landolphia Oivariensis, Beauv). West- African 

 caoutchouc ; Dambonit. 



„ Senegalensis, A. DC. Senegambia caoutchouc. 

 Valeriana officinalis, L. Valerianese. Herb: Valerianic acid. — 



Root : volatile oil with Borneen and Borneol ; Valerianic and 



Valeriana-tannic acids. 

 Vanilla aromatica, Sw. ; V. Guiauensis, S})litg. ; V. planifolia, 



Andr.; V. sativa,!!^^^. Orchideee, Fruit : Vanillic acid. 

 Variolaria, many species. Lichenes. Lecanoric acid; Orciu. 

 Valeria Indica, L. Dipterocarpete, Fruit : Vateria tallow. — 



Copal. 

 Veratrum alburn,!^.; V. viride, Alton. Liliaceie. Root: Jervin; 



Sabadillic acid. 

 Vincetoxlcum officinale, Moench. Asclepiadete. Root : Asclepiadin. 

 Vida odorata, L. Violacete. Whole plant : Violin. 

 Viscmii alhttm, L. Loranthacete. Fruit, foliage and branches : Viscin. 



