180 LINN*AN NATURAL SYSTEM. 



The plants of this order have been divided into several sections, 

 but there is not yet discovered a mark of distinction common to 

 them all. 



ORDER XIII. SUCCULENTS. 



14. This division is intended to embrace those plants 

 which are of a fleshy and juicy nature. Cactus, tamarind, 

 saxifrage, hydrangea, &c. 



The succnlentte grow, and become very tnrgid, in the driest soil, 

 nor are any found in watery places. If moistened too much they 

 perish and their roots decay. They afford, on putryfying, a fine 

 vegetable mould, whereas dry plants, like heath and fir, scarcely 

 yield any. 



ORDER XIV. GRUINALES. 



15. This order brings together those plants which 

 have flowers somewhat resembling a crane's-bill. Gera- 

 nium, flax, sun-dew, wood-sorrel, and others. 



Their roots and habits are various. Calyx, usually of five leaves, 

 and corolla of five petals ; stamens various in number and con- 

 nexion ; pistils mostly five or ten; fruit, various. Many of the 

 1>I ants have acid leaves. 



ORDER XV. INUNDATE. 



10. So called, because they grow in water, many 

 of them under the surface, except their blossoms. Hip- 

 puris, potamogeton or pond- weed, elatine, &c. 



T!ie qualities of the inundatae are very obscure. They are mostly 

 fnoilorous, except a fishy scent in some, nor have they any par- 

 ticular taste. 



ORDER XVI. CALYCIFLORjE. 



17. The plants of this order have the stamens in- 



