CANNON 



P( ATP 1 'J. 



Fig. 31. View ir. a cemetery at Ghardaia, to bl:Q\s the lelalively abundani vcgeuuon. 



'J^*^^ 











^ 



,-^is* 



J-v' 



*>*nt 



*;c 



Fig. 32. View in an M'Zabite cemetery, Ghardaia. Haloxylon articulatum is the leading species shown. 



