SALICACE^E 195 



SALICACE^. 



Leaves usually narrow. Catkins usually erect, scales entire SALIX. 



Leaves broad. Catkins drooping, scales cut POPULUS. 



SALIX L. WILLOW. 



The following are almost the only kinds of Willow found in our district : 

 they are all found more or less near water, or on the banks of rivers and streams ; 

 flowering in March or April : S. cinereaL., S. viminalis L. (rare), S. incana 

 Schrank (fairly common), S. purpurea L., S. amygdalina L. (rarely), S. 

 fragilis L. (usually cultivated), S. alba L., and S. caprea L. occasionally in 

 mountain woods. 



POPULUS L. POPLAR. 



P. tremula L. is rare in the Var and commoner in mountain woods of les 

 Alpes-Marit. March. P. alba L. is frequent throughout the Var and here and 

 there in les Alpes-Marit. in woods and by water. March. 



P. nigra L. is common by water and in damp places in both Departments 

 and it is often planted. March-April. The Lombardy Poplar (P. pyramidalis 

 Rosier) is occasionally planted. 



ADDENDA. 



The three following Umbellifers should have been mentioned, viz. : 

 Apium nodiflorum Rchb. Common in ditches, streams, etc. June-July. 

 Bifora testiculata DC. Occasionally in cultivated fields. April-May. 



Ridolfia segetum Moris. A very distinct plant, with bright yellow 

 flowers and divaricate, filiform leaves. Fields and waste places. June-August. 



Also the curious little Vaillantia muralis L. (Rubiaceae), with sharply 

 toothed and fringed fruits, which grows on rocks and dry, sandy places. April- 

 June. 



Scutellaria galericulata L. has been recorded from both departments, but 

 its presence is now doubtful. 



13* 



