498 



BOTANY. 



via officinalis, Garden Sage, are small South European shrubs, now 

 to be found in all gardens. 



Catnip, Balm, Horsemint, and many others are used more or less as 

 family medicines, for which purpose they are well suited, being harm- 

 less and ieebly operative. 



Several tropical species of Salma are grown as ornaments, as are also 

 Coleus and Perilta, from Southeastern Asia. 



Order Verbenacese. The Vervain Family. Herbs, shrubs, or 

 trees, usually not aromatic, with mostly four-angled stems. The 

 species number about 700, and are chiefly tropical. They generally 

 possess a bitter and astringent principle. 



Wiih us the order is esteemed principally for its ornamental value. 



FIGS. 416-18. ILLUSTRATIONS op LABIATE. 



FIG. 416. 



FIG. 417. 



FIG. 418. 



Fig. 416. Flower of Lamium, side view. 



Fig. 417. Vertical section of flower. Magnified. 



Fig. 418. Diagram ol flower. 



Besides the several South American species of Verbena in common cul- 

 tivation, the so-called Lemon Verbena (Lippia citroidora) from Chili, 

 and the species of Lantana from tropical America, there are to be 

 found in conservatories many showy species of Clerodendron, from Asia. 



Tectona grandis, the Teak Tree of India, is a gigantic tree whose 

 yellowish durable wood is much used in ship-building. It is said to 

 resist the attacks of Limnoria terebrans when exposed in sea-water. 



Vitex littoralis, of New Zealand, and other species, growing in the 

 Indo-Australian region, are large and valuable timber trees. 



Order Myoporineee. Mostly Anstralian shrubs, of no value. 



581. Cohort XUI. Personales. Plants with zygomor- 

 phic flowers, superior ovaries, and dehiscent many-seeded 

 fruits. 



