498 



BOTANY. 



ma 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 feebly operative. 



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

 'Coleus and PeriUa, from Southeastern Asia. 



Order Verbenaoese. — 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. 



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



Yias, 416-18.— Illustbations ot Labiate. 



Fio. 416. 



Pig. 417. 



Fia. 418. 



Fig. 416. — Flower of Lamium, Bide view. 



Fig. 417.— Vertical section of flower. Magnified. 



Fig. 418.— Diagram of flower. 



Besides the several South American species of Veriena 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 littoraMs, of New Zealand, and other species, growing in the 

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



Order llyoporinese. — Mostly Australian shrubs, of no value. 



581.— Cohort xm. Personales. Plants with zygomor- 

 phic flowers, superior ovaries, and dehiscent many-seeded 

 iruits. 



