141 



CLASS 17. DIADELPHIA. 



(Containing Plants with Stamens in two bundles.) 

 Flowers pea-shaped. Fruit a pod. 



This is another natural and highly-important class, very 

 nearly the same as the order Leguminosae ; the plants of it 

 having all pod-shaped seed vessels and pea-shaped flowers. 

 Many very beautiful British plants are found to have this 

 character, most of which are so common as to be well known 

 as the Furze, the Broom, the Tare, and the Clover, besides 

 these and others described, we have the Milk-vetch, the 

 Horse-shoe-vetch, the Saint-foin, and the Lucerne. 



The Foreign plants of Diadelphia are exceedingly interesting, 

 and many of them favourite garden productions, particularly 

 the Lupins, the Bean, Pea, Kidney Bean, Laburnum, Robinia, 

 Bladder Senna, Coronilla, Liquorice, Goat's rue or Galega, 

 Astragalus, and others of equal interest and importance. 



Order 1. HEXANDRIA. Six Stamens. 

 FUMITORY, (Fumaria.) Calyx two-leaved ; petals four ; pod 

 round and one -seeded. 



Order 2. OCTANDRIA. Eight Stamens. 

 MILK-WORT, (Polygala.) Calyx of five leaves, two of them 

 wing-like. 



Order 3. DECANDRIA. Ten Stamens. 

 * Stamens connected together at the base. 

 FURZE, (Uleoc.) Calyx two-leaved ; pod swelled, short. 

 GREEN WEED, (Genista.) Calyx two-lipped, upper deeply cleft, 

 BROOM, (Cytisus.) Calyx two-lipped, upper nearly entire. 

 REST-HARROW, (Ononis.) Calyx of five very narrow clefts. 

 KIDNEY-VETCH, (Anthyllus.) Calyx swelled, five-toothed. 



