250 EXPLANATION OF 



D 



DECAN'DRIA ; the name of the tenth class: ten stamens 

 in each flower. [Plates 2. and 12.] Also the name 

 of one of the orders, in the classes Monaderphia, 

 Diadel'phia, and Polyadel'phia. [Plate 19.] 



DECIB'UOUS (leaf) ; falling off in the autumn. The 

 term is also applied to the calyx, corolla, legumen, 

 and stipula. 



DECUMBENT, applied to the stalk ; lying upon, or near 

 the ground. 



DIADEI/PHIA ; the name of the seventeenth class : fila- 

 ments united in two sets ; flowers butterfly-shaped. 

 [Plates 2. and 19.] 



DIAN'DRIA ; the name of the second clat>s : two stamens 

 in each flower. [Plates 2. and 3.] Also the name 

 of an order, in the classes Gynandria, Monoecia, and 

 Dioecia. 



DIDYNA'MIA ; the name of the fourteenth class : four 

 stamens in each flower ; two of them long, and two 

 short. [Plates 2. and 16.] 



DIGYN'IA ; the name of one of the orders in each of 

 the first thirteen classes, except the ninth and 

 twelfth; two pistils in each flower. [Plate 6.] 



DIOE'CIA ; the name of the twenty-second class of Lin- 

 naeus: the flowers which contain stamens growing up- 

 on distinct plants from those with pistils. [Plate 2.] 

 Also the name of one of the orders in the class 

 Polygamia. 



DIPHYI/LOUS, calyx; two-leaved: as in the Poppy. 

 [Plate 15.] 



