154 DE CANDOLLE'S SYSTEM. 



or pendulous ; style 1 ; stigma bifid. Fruit composed of 2 

 or 4 nucules in a state of adhesion ; albumen none. 



USES. A few are slightly aromatic and bitter. 



TYPICAL GENERA. Verbena, Aloysia, Callicarpa. 



121. AcantJiaceee. Herbaceous plants or shrubs. Leaves 

 opposite, without stipules. Inflorescence in spikes, racemes, 

 fascicles, or even solitary. Flowers usually opposite, placed 

 within bracts. Calyx very much imbricated, permanent, in- 

 ferior. Corolla irregular, 2-lipped. Stamens mostly 2, some- 

 times didynamous. Ovary in a disk, 2-celled, 2- or many- 

 seeded ; stigma 2-lobed. Capsule 2-celled, bursting elasti- 

 cally. Seeds hanging by hard, usually hooked processes of 

 the placentae ; albumen none. 



USES. Acanthus spinosus is accounted emollient. The 

 leaves and roots of Adhatoda Vasica are supposed to be 

 antispasmodic. Justicia paniculata is bitter and stomachic. 



TYPICAL GENERA. Ruellia, Justicia, Eranthemum. 



122. Lentibulacea. Herbaceous plants. Leaves undi- 

 vided, or resembling roots, and bearing vesicles. Flowers 

 single, or in spikes. Calyx permanent, inferior. Corolla 

 irregular, bilabiate, with a spur. Stamens 2 ; anthers sim- 

 ple. Ovary 1-celled, with a free central placenta; stigma 

 bilabiate. Capsule 1-celled. Seeds without albumen. 



USES. Of no importance. 



TYPICAL GENERA. Pinguicula, Utricularia. 



123. Plumbaginacea. Herbaceous plants or shrubs. 

 Leaves alternate, undivided, somewhat sheathing. Calyx 

 inferior, tubular, plaited. Corolla regular. Stamens definite. 

 Ovary superior, 1-seeded ; ovule pendulous from an umbilical 

 cord ; styles 5. Fruit a utricle. Seed inverted. 



USES. Statice Limonium, and others, have extremely 

 astringent roots. The bark of Plumbago is acrid and vesi- 

 cant. 



TYPICAL GENERA. Armeria, Plumbago. 



l24.Globulariace<e. Shrubs or herbs. Leaves alternate. 

 Flowers in heads. Calyx inferior, permanent, 5-cleft, some- 

 times 2-lipped. Corolla hypogynous, bilabiate, made up of 



