FIG. 127. 



Various devices for Seed Dispersal. Arrangements for dispersal by means of the 

 wind are shown at a, seed of a Bignonia; d, fruits of Ailanthus; e, seed of 

 Salix myrsinitis ; g, fruit of Geum montanum ; i, fruits of Tilia, where a bract 

 serving as a wing adheres to the fruiting peduncle ; /, fruits of Taraxacum, where 

 the modified calyx or pappus acts as a parachute; , fruits of Acer. Devices 

 for catching hold of passing animals are shown at c, fruit of Bidens bipinnata; 

 h, Hedysarum Canadense, the jointed fruits of which are beset with hooks, as 

 shown at / ; m, fruit of cocklebur. Sticky glandular hairs covering the calyx 

 containing ripened fruits occur in / Salvia glutinosa ; the magnified hairs are 

 shown adhering to an object at k. Hurling the fruits from a catapult formed by 

 the persistent calyx and elastic pedicel occurs in Teucrium Euganteum at b ; 

 here projection occurs when the plant is shaken, etc. Creeping of fruits by the 

 hygroscopic movement of arms and hairs: o, &gilops ovata; p, Crupina vul- 

 garis. After KERNER. 



