PLATE XIII. 
is also found at Nice and Monaco, finding on this French shore of the 
Mediterranean its northern limit. It is cited by Desfontaines as seen in 
the sands of Algeria, where a white variety is also mentioned. 
The time of flowering is from the end of April to the middle of May, 
appearing about the same time as that splendid plant Convolvulus 
altheeoides, whose large blossoms attract universal attention. 
