153 ^ORMS OF LEAVES. 



In compourKl leaves the footstalk is ei- 

 ther si«Tple, as in the instances last 

 quotedj and Sium angusti folium, t. 139; 

 or compoiind, as those of Stlinum pa- 

 lustre,, t, 229, and Thalictrum majus, 

 t. 611. — In simple leaves the footstalk, 

 if present, must of course be simple, 

 while in compound ones it must al\vay.s 

 be present, though not always sub- 

 divided. 



Simple Leaves are either integra, undi- 

 vided, as those of Grasses and Orchises ; 

 or lohata, lobed, like the Vine, the 

 Thistle, most kinds of Cranesbill, as Ge- 

 ranium pratense, Engl. Bof, t. 404, Szc. 



Leaves are frequently undivided and lobed 

 on the same plant, as the Hop, Engl. 

 Bot. t. 427. 



4. The following; are the most remarkable 

 forms of Simple Leaves, considering their 

 outhne only. 



Orbkukttum^ f. 38, a circular or orbicular 

 leaf, whose length and breadth are equal, 

 and the circumference an even circular 

 line. Precise examples of this are 



