EUPHORBIAS. 93 



which strikes strangers most is the giant E. 

 dendroides sometimes called the Emerald Bush 

 Spurge, so abundant in all rocky places round Nice. 

 Mr. C. Bicknell has given me the following note 

 about the distribution of this characteristic plant. 

 " I don't think" (he says) " that E. dendroides likes such 

 a very modern formation as the tertiary sandstones 

 and marls of the Bordighera district. It flourishes 

 on the older rocks. There is a little of it in the 

 lioja valley near Ventimiglia on the conglomerate, 

 but only a little : thence eastward it does not 

 reappear till Alassio." 



The Bush Spurge cannot stand much frost : in 



fact the Carob alone is more delicate, as will appear 



from the following list, drawn up by Professor 



Martins, of indigenous Kiviera plants in order of 



resistance to cold : 



1. Vitis vinifera. 8. Laurus nobilis. 



2. Quercus Ilex. 9. Myrtus communis. 



3. Pistacia lentiscus. 10. Chamcerops humilis. 



4. Smilax aspera. 11. Nerium oleander. 



5. Ficus Carica. 12. Euphorbia dendroides. 



6. Olea Europea. 13. Ceratonia siliqua. 



7. Pimica granatam. 



On many species the handsome caterpillar of the 

 Euphorbia Hawk Moth (Deilephila Euphorbias) is 

 frequently seen feeding ; and the larva of the rare and 

 very valuable Nice Hawk Moth (Deilephila Niccea, Fig. 

 35) is also to be found upon these same plants. The 

 two moths are hardly to be distinguished, even by an 

 experienced eye, but the larvae are very different. 

 That of the Nice Sphinx has along the back a row of 

 large black markings, each of which is the exact 



