CANNON 



PLATE 31 



i m 



"«& 



V 



- \ . 



Fig. 70. Young shoots of Phelypaea violacea, at Fig. 71. Habit of young specimens of Phelypaea. 

 north base of Ed Delouatt hills, Biskra. Except for about 15 cm., plants were buried 



by sand. Biskra. 





Fig. 72. Asphodelus sp. at north base of Ed Delouatt hills, Biskra. Photographed in March. 



