NATURAL HISTORY OF PLANTS. 



only, or rarely two, is largely developed, the others remaining 

 rudimentary. It is the same with Tristellatcia, inhabiting Mada- 

 gascar and tropical Oceania, having a calyx without glands or with 

 rudimentary ones, unguiculate petals, flowers in clusters, and a fruit 

 whose samaras are furnished with a circular marginal wing cut in 

 unequal lobes, rigid, entire or not at the apex, spreading starlike, 

 often with a dorsal ridge of small size and more or less deejjly 

 laciuiate. 



Dmemaiidia ghiuca. 



Fig. 443. Flower (f). 



Fig. 446. 

 Gynseceum (-f). 



Fig. 444. Longitudinal 

 section of flower. 



Fig. 445. Flower with 

 corolla removed (f). 



Fig. 448. Ripe Carpel, 

 longitudinal section. 



Fig. 447. Fruit. 



The two Chilian genera DInemagomun and Dinemandra (fig. 

 443-448) are considered as genera intermediate between this series 

 and the following, being represented by small suffrutescent plants, with 

 narrow leaves, having long-stipitate calycine glands, unequal petals, 

 stamens only partially fertile : two or three in Dinemandra, eight in 

 Dinemagonum. The anthers are linear-oblong, and to the trilobed 



