82 
Dicotyledons with Gamopetalous Flowers . 
Natural Order 
VERBENACE^E. Tab. 66. 
D iagnosis.— Herbs or exotic shrubs or trees, with opposite leaves. 
Corolla hypogynous, irregular. Stamens epipetalous, fewer than corolla- 
lobes, didynamous or diandrous. Ovary 4- or 2-celled, entire, with a 
terminal style. 
Distribution. —A considerable Natural Order, chiefly Tropical and Subtropical, with but four 
European representatives. The woody species are nearly all Tropical. 
One British Genus; Species, i. 
FLOWERS agreeing generally with those of Labiate, differing chiefly in the consolidated ovary. 
USES, &c. — The most important member of the Order is the East Indian Teak-tree ( Tectona grandis), 
affording an invaluable tenacious and very durable timber, used in building ships and railway-carriages. Several 
Verbenaceae are in cultivation : eveiywhere garden varieties of Verbena, scarlet, purple, and white, originated by culture 
and hybridisation from two or three South American species ; L'q/pia citriodora, for the sake of its fragrant foliage, 
and Vitex Agnus-Castus; while in our plant-houses, tropical species of Clerodendron, Lantana, Petroea, Stachy- 
tarpheta, and other genera with gay flowers. 
Natural Order 
ACANTHACEA 
Diagnosis.— Herbs with opposite leaves. Corolla hypogynous, irregular. 
Stamens epipetalous, fewer than corolla-lobes. Ovary entire, 2-celled, 
