FRUITS AND SEEDS AND THEIR USES 287 



FIG. 167. Various devices for the scattering of fruits and seeds. 

 The following are carried by the wind : the seed of a Bignonia (a) ; the 

 fruit of A ilanthus (d) ; the seed of a willow (e) ; the fruit of the avens (g) ; 

 the fruits of the basswood (z), whose peduncle is united for a distance with 

 a bract-like leaf ; the fruits of the dandelion (7) ; and maple fruits (n) . 

 The fruits of the Spanish needles (c), of Hedysarum (h, /), and of the cockle- 

 bur (m) attach themselves to passing animals. The sepals of Salvia glu- 

 tinosa, surrounding the ripe fruits (/), bear sticky glandular hairs which 

 adhere to objects that they touch, as shown at k. When the germander 

 plant (b) is shaken, the fruits are discharged by a mechanism composed of 

 the sepals and the elastic pedicel. The fruits of Mgilops (d) and of Crupina 

 (/>) creep by means of the hygroscopic movements of hairs and other parts. 

 After Kerner, 



