CLASSIFICATION OF TREES AND SHRUBS ACCORDING 

 TO THE CHARACTERS OF THE LEAVES. 



I. LEAVES COMPOUND: THE LEAF -SEGMENTS [For II see 

 COMPLETELY ISOLATED, AND EACH JOINED P- 177 -] 

 TO THE COMMON RACHIS BY ITS OWN PETIO- 

 LULE, OR SEPARATELY INSERTED ON IT. 



A. LEAVES OPPOSITE, AND, ON THE ERECT SHOOTS, [For B see 



USUALLY DECUSSATE. 



(1) Leaves pinnate, all with a terminal leaflet [For (2) 

 i.e. imparipinnate. 



(a) Leaflets few, about 57, and broad, more or 

 less ovate, on long petiolules some of which twine 

 as tendrils; venation reticulate, quite exstipulate; 

 shoots slender. 



[There are no British trees or shrubs with paripinnate 

 leaves. Shoots with apparently distichous evergreen 

 simple leaves may possibly suggest resemblances to the 

 beginner e.g. Yew, Silver Fir, &c. but he will note buds 

 in some of the leaf-axils.] 



Clematis vitalba, L. Traveller's Joy, Old Man's Beard 

 (Fig. 29). A climbing hedge-shrub, with long slender 

 6-angled shoots. Leaflets about 5 7 (3 9), on long 

 petiolules, some of which coil as tendrils round other twigs 

 and then persist for some years. Rachis up to 6 7 cm. 

 long. Lamina thin, 4 10 cm. long and 2 5 broad, oval- 

 acute to ovate-cordate, entire or with a few coarse teeth 



