66 AN INTRODUCTION 



ORDER IV. TETRAGYNIA, comprehending such 

 plants as have four Styles. This order contains two 

 genera, viz. Parnassia and Evolvulus. 



ORDER V. PENTAGYMA, comprehending such 

 plants as havey/Ve Styles, distinguished into, 1. Those 

 with flowers above ; of which there is one genus, 

 viz. Aralia. 2. Those with flowers below ; of which 

 there are nine genera, viz. Crassula, Gisekia, Linum, 

 Aldrovanda, Drosera, Mahernia, Commersonia, Sib- 

 baldia and Statice. 



ORDER VI. POLYGYNIA, comprehending such 

 plants as have more than five Styles. This order 

 contains two genera, viz. Myosurus and Zanthoriza. 



CHAP. 

 OF THE SIXTH CLASS HEXANDRIA, 



THIS Class consists of such plants as bear herma- 

 phrodite flowers, furnished with sLv Stamina. The 

 flowers of this class may be known from those of the 

 fifteenth by this distinction, that the stamina are of 

 equal length ; whereas in those of the fifteenth, which 

 have six stamina likewise, there wee four long and two 

 short. The orders of this class are five, viz. 



ORDER I. MONOGYNIA ; comprehending such 

 plants as have but one Style. This order contains 

 forty-eight genera, divided into, 1. Such as are fur- 

 nished with both calyx and corolla ; of which there 

 are seventeen genera, viz. Licuala, Bromelia, Pitcair- 

 nia, Tillandsia, Burmannia, Traclescantia, Bursera, 

 Frankenia, Loranthus, Hillia, Richardia,. Berberis, 

 Leontice, Prinos, Canarina, Nandina, and Achras. 

 2, Such as have flowers with a spatha, or with a husk ; 



