Uses.--The plant has much reputation in India in the treatment of skin diseases, and indeed its efficiency is great in the stubborn _Tinea circinata tropica_, known throughout the Orient as "dhobie-itch." In this disease it is applied for several days to the affected part in the form of a paste composed of the bruised leaves, the juice of the leaves and lemon juice. The fresh root also may be employed. The Hindoo physicians state that the root decoction in milk is aphrodisiac; the root is also regarded as an antidote for the bite of the "cobra da cabelho," but its virtue is purely imaginary. Of late years the plant has been used in Europe under the name of "tong-pang-chong," to treat chronic eczema. Liborius made an analysis of the root in the laboratory of Dorpat, separating 13.51% ash and 1.87% _rhinocanthin_, as well as other ingredients. Rhinocanthin (C_14_H_18_O_4_) is supposed to be the active principle of the root. It is analogous to quinon and resembles in many particulars chrysophanic and frangulic acids. It forms a resinous, amorphous mass, cherry red, odorless and tasteless, slightly soluble in water, forming a mildly alkaline solution in alcohol. It does not yield glucose when boiled with dilute hydrochloric acid. Liborius believes that it exists only in the intercellular spaces of the "root bark." Botanical Description.--A shrub, about 4° high, stem ash-colored, no spines. Leaves lanceolate, undulate, downy. Flowers white in spikes. Calyx gamosepalous, 5-toothed. Corolla long, filiform, limb 4-lobed, the 3 lower lobes ovate, the upper pointed. Stamens 2. Ovary free, 2 biovulate locules. Style simple. Stigma bifid. Seed vessel club-shaped, 4 seeds in the upper part. Habitat.--Common in the gardens of Manila. VERBENACEÆ. Vervain Family. _Lippia nodiflora_, Rich. (_Verbena nodiflora_, L.; _V. capitata_, Blanco.) Nom. Vulg.--_Tsatsatsatsahan_, _Chachachachahan_, Tag. Uses.--The Filipinos drink an infusion of the leaves in place of tea, the long Tagalog name meaning "resembling tea." In India they drink the hot infusion to aid digestion. In some places the decoction of the leaves is given internally as an emollient and diuretic for gonorrhoea. Botanical Description.--A small plant with creeping stem taking root where it touches the ground, obscurely angular, covered with short down. Leaves opposite, smooth, clasping the stem, inversely ovate, serrate only above, slightly downy. Flowers white, slightly purplish, axillary on a common peduncle, in a rough conical head. Corolla somewhat bowed, funnel-form, gaping, throat narrow, limb 4-lobed, one lobe shorter than the rest. Stamens 4, 2 longer. Filament almost wanting. Anthers 4, fertile. Ovary superior, style very short. Stigma semi-globose. Fruit, 2 seeds covered by the pellicle of the ovary. Habitat.--Very common in the rice fields. _Tectona grandis_, L. Nom. Vulg.--_Teca_, Sp.; _Tikla_, Tag.; _Dalondón_, _Yate_, _Kalayati_, Vis.; _Teak Tree_, Eng.