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; n, fruits of Acer. Devices 

 for catching hold of passing animals are shown at c, fruit oi Bidetfs 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 Euganmum at b\ 

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

 hygroscopic movement of arms and hairs: 0, ^gilops ovata; /, Crupina vul' 

 garis. After Kerner. 



