SCALE-LEAVES, FOLIAGE-LEAVES, FLORAL-LEAVES. 



631 



either in the apices of the lobes or serrated teeth of the margin, as in hazels, oaks, 

 chestnuts, hornbeams, and hop-hornbeams (see fig. 149'), or in the indentations 



Fig. 149. Arrangement of Strands in the blades of Foliage-leaves. Forms with one main strand. 



Reticulate (Pyrus communis). a Looped (Rhamnus Wulfenii). Arched (Cornus mas). Arched ; the two lowest lateral 

 strands much stronger than the others (Laurus Camphora). * Reticulate-pinnate (Populut pyramidalit). Undivided 

 strands, ending in the incisions of the crenate leaf margin (Rhinanthus). 1 Undivided strands, terminating in the 

 projecting teeth of the margin (Ostrya). Reticulate (Hydrocotyle asiatica). Reticulate strands in the blade of a 

 peltate leaf (Hydrocotyle vulgaris). 10 looped (Myosotis paluttris). " Arched (Phyllagathis rotundtfolia). " Rad;ate 

 and undivided (Acer platanoides). i Looped (Eugenia). 



of the margin, as in Bartsia, Eyebright, and Yellow-rattle (Bartsia, 



and Rhinanthus), and, generally speaking, in all Rhinanthacese (see fig. 149 8 ). 



