PLATE XY. 
Remarks.—No plant yet found at Mentone can be mistaken for this, 
though the strange prostrate Euphorbia pephs, which spreads itself 
over the pebbles just out of the reach of the sea, has the same stipulate 
leaves, and other curious features in common. Some officinal plants 
are found in this order, yielding castor oil, which is procured from the 
seed of Ricinus Palma-christi, a native of India and Africa ; Croton oil, 
from Croton tiglium, a tree growing in India, Ceylon, &c.; and an 
imitation of the emetic Ipecachuana, which is in reality obtained from a 
plant of Rubiaceous order, Cephaélis Ipecachuana. The warmth and 
equability of the winter climate of Mentone is testified in many ways ; 
the great height (6 or 7 feet) attained by Euphorbia dendroides, and the 
perennial growth of Ricinus Palma-christi, being worthy to be noticed, 
as well as the gardens of lemons, and the winter residence of the 
Rock-martin (Hirundo rupestris). 
Besides the drugs mentioned above there are other useful products 
gained from this curious order of plants, among which may be named 
tapioca, from Manihot utilissima, and bottle india-rubber, from Siphonia 
elastica, a native of Brazil. 
- The specimen figured was brought from near Ventimiglia, on Novem- 
ber 11th. This plant has never yet been found in France, and is not 
given by Grenier and Godron. 
