112 GENERA IN CLASS XXII. DIOSCIA. 



Order 1. Monandria, comprehends such plants as have their 

 male flowers furnished with one stamen. This order contains se- 

 ven genera, viz. Pandanus...Phucagrostis...Monimia...Asca- 

 rina..»Didymeles...Dahlia...Phelyp;ea. 



Order 2. Diandria, comprehends such plants as have their 

 male flowers furnished with two stamina. This order contains 

 five genera, viz. Vallisneria...Salix (willow, sallow, osier),., 

 CfictiopiA . . .Ceratiola . . . and Borya. 



Order 3. Triandria, comprehends such plants as have their 

 male flowers furnished with three stamina. This order contains 

 ten genera, viz. Empetrum...Osyris...Caturus...Restio...Maba 

 ...Phcenix (date palm),,. Helwingia...Stilago...Willdenovia 9 

 and Elegia. 



4 



Order 4. Tetrandria, comprehending such plants as have 

 their male flowers furnished with four stamina. This order con- 

 tains thirteen genera, viz. Viscum (misseltoe) ... Hippophae (sea 

 buckthorn) ...Myrica...Trophis...Batis ...Montinia...Brucea... 



ScHiEFFERI A. . .Ca VANILLA. , . NaGEI A. . . ANTHROSPERMUM . . .K(ELE- 



RA...and Broussonetia. 



Order 5. Pentandria, comprehends such plants as have their 

 male flowers furnished with five stamina. This order contains se- 

 venteen genera, viz. Pistacia ... Zanthoxylum... Astronium... 

 Iresine... Antidesma... Spinacia (spinach)... Acn id a... Canna- 

 bis (hemp)... Humulus (hop)... Zanonia... Feuillea...Canarium 

 ...Picramnia...Securinega...A€Nida...Fluggea, and Mehcy- 

 tus. 



Order 6. Hexandria, comprehends such plants as have their 

 male flowers furnished with six stamina. This order contains ten 



stinction, in the order Monogynia, of the class Pentandria, which are the Asperifv- 

 lia (rough-leaved plants) of Ray, and also in the plants of the classes Didynamia, 

 Tetradynamia, and Diadelphia, there have not been found any species where the 

 sexes are on distinct plants : this may be accounted for from the structure of the 

 flowers in those classes. Author. 



