1S2 UNN/EAN NATURAL SYSTEM. 



ORDER XIX. HESPERIDE^E. 



20. This natural order has not been fairly related. 

 It is said, to consist of aromatic and elegant shrubs and 

 trees ; such as the eugenia or clove-tree, myrtus or 

 myrtle, psidium or guava, &c. 



ORDKR XX. ROTACE/E. 



21. This order has likewise been indifferently de- 

 fined, but the wheel-shaped corolla of many of its plants 

 has evidently suggested its name. Anagallis or pim- 

 pernel, gentiana or gentian, and so on. 



ORDER XXI. PRECIS. 



22. The plants of this order, have been so named 

 from precins, early; because they flower early in the 

 spring. The genus primula or primrose, together with 

 its elegant relatives, form the foundation of this arrange- 

 ment. 



These plants are all destitute of stems ; leaves simple; flower 

 regular ; calyx as well as corolla, five-clefO; stamens five ; style 

 one fruit a simple superior capsule. 



ORDER XXII. CARYOPHYLLE/*: 



23. Here we have the tribes of pink and campion, 

 with numerous other plants having natural affinities to 

 the same. Dianthus or pink, saponaria or soap-wort, 

 silene or catch-fly, arenaria or sand-w&it, stellaria or 

 sti!Th-wort, and others. 



