378 verbenace^e 



inches long by sixteen broad. The timber somewhat resembles 

 mahogany in colour, but is stronger. For shipbuilding teak is 

 unequalled. 



i. Verbena (Vervain). — Herbs or undershrubs with 4-angled 



verbena officinalis (Common Vervain). 



stem; opposite leaves ; flowers in bracteate, terminal spikes or 

 racemes ; calyx unequally 5-cleft 3 corolla salver-shaped, unequally 

 5-cleft; stamens included; fruit of 4 1 -seeded nutlets. (Name, 

 the Latin name of the plant.) 



1. V. officinalis. — The only British species, a slender, tough- 



