DISPERSAL BY WIND. 



857 



the style (with nut suspended below) slides out of the hole, around which the 

 perianth-lobes are connate, until its further progress is arrested by the button-like 



Fig. 471.— Dispersion of fruits and seeds by the wind. 



1 Senecio vulgaris. 2 Adeiiium Eonghel. » Valeriana tripteris. * TypJia Schuttlewortkii. 6 JSriophoruTn angustifolium. 

 « Cynamchumfuscaturn. ' Micromeria nervosa. » and » Taraxacum oficitiale. lo Salix JHyrsinites. 



stigma. The perianth here forms a beautiful parachute, with the nut hanging 

 freely below at the end of a string, like an enterprising balloon-gymnast. 



From the fruits and seeds equipped with parachutes we pass to those which are 

 embedded in masses of wool or in envelopes of silky hairs, and are thereby enabled 



