MANUAL OF NATURAL HISTORY. 411 



exstipulate ; flowers sessile, bracteate ; calyx 

 ' spathaceous or tubular ; aestivation imbricate ; 

 stamens four ; anthers 1 -celled ; ovules pen- 

 dulous ; fruit confluent nuts, 2-celled ; seed 

 solitary, pendulous ; radicle superior. Princi- 

 pally natives of the Cape of Good Hope ; one 

 species is found in Siberia, and a few occur 

 in the South of Europe. 



2. Family. — White -Mangroves (Myoporacese). 

 Shrubs, scarcely pubescent ; leaves alternate 

 or opposite, exstipulate, simple ; flowers 

 axillary ; stamens four ; anthers 2-celled ; 

 ovary 2-4-celled; ovules pendulous; fruit 

 drupaceous ; seeds pendulous ; radicle su- 

 perior. Occur in the Southern tropical regions 

 of Africa and America, also in Australia, 

 Van Diemen s Land, and New Zealand. 



5. Family. — Vervains (Verbenacese). Trees, shrubs, 

 or herbs ; leaves mostly opposite, exstipulate ; 

 flowers usually in opposite corymbs, or alter- 

 nate spikes ; calyx and corolla tubular ; 

 aestivation imbricate ; stamens four; ovary 2~ 

 4-oelled ; ovules erect ; fruit nucamentaceous, 

 sometimes berried ; radicle inferior. Common 

 in tropical and temperate America. Occur 

 alsp in Europe, and Asia. The most im- 

 portant species is the East Indian Teak (Tec- 

 tona grandis). 



4. Family. — Mints (Lamiacese). Herbs or under- 

 shrubs; stem tetragonal; leaves opposite, 

 exstipulate, with receptacles of aromatic oil ; 



T 2 



