Ixii INTRODUCTION TO BOTANY. 



17. Santalacece. BR. 

 Ge7i. Thesium. 



CLASS VI. 



Pcristaminy, or Stamens Perigynous. 



18. Thymelece. Juss. 

 Gen. Daphne. 



The barks of this flimily contain a green, resinous principle, 

 a bitter crystalline substance, called daphnine, and a yellow 

 colouring matter : more or less acrid ; most, in some degree, 

 {>oisonous. 



19. Pohjgonece. Juss. 



Gen. Rumex. Polygonum. This fannly a striking exam- 

 ple of plants agreeing in chemical composition, which possess 

 the same botanical characters. The roots of a great number 

 of Polygoneae contain tannin and gallic acid, and are hence 

 astringent, &c. The seeds with a large and farinaceous, nutri- 

 tive albumen. 



20. Chenopodice DC. Atripliceee. Juss. 

 Gen. Chenopodium. 'Atriplex. 



Plants of this family sweet, mucilaginous, sugary. 



(CLASS VK.) 

 CLASS VIIL 



Hypocorolly, or Corolla Hypogynous. 



21. PlantaginecB. Juss. 

 Gen. Plantago. 



The seeds of this family contain a large quantity of 

 mucilase. 



22. Primulacece. Vent. Lysimachice. Juss. 



Gen. Hottonia. Lysimachia. Anagallis. Primula. Sa- 

 niolus. 



23. Orobanchece. Ventenat. 

 Gen. Orobanche. Lathrsea. 



24. Scroplmlarinece. BR. Scrophulariae and Pediculares. 

 Juss, 



Gen. Digitalis. Antirrhinum. Scrophularia. Limosella. 

 Melampyrum. Pedicularis. llhinanthus. Bartsia. Euphrasia. 



