CANNON 



PLATE ?4 



i! 



1-: 





£» 



I 



V 



\ 



56. Ou.. 



^ I . II lUiu guyoiuanum. The -uri 



leaves is covered with an incrustation of salts. 



«v1^MMnW«u 



Fig. 57. Habit of Liinoniastrum guyonianum. About 25km. north of Ouargla. 



