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



C31 



eitlier 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 tlie bLidea of Foli.igc-leaves. Forms with one main striuiil. 



1 Reticulate (Pi/rtM communis). ' Loopeil (Wtamnus Wulfenii). » ArclieJ (Cornus mas). < Arolied ; tlie two lowest lateral 

 strands much stronger than the otliers {Laurus Cainphora). * Reticulate-piimnte {Populus pyramidalis). i Undivided 

 strands, ending in the incisions of tlie crenato leaf niar^'in (lihiiianthus). ^ Undivided strands, terminating in tlte 

 projecting teeth of the margin (Oatrya). » Keticulate {Uydrucotyle asiatica). 9 Reticulate strands in the Ijlado of a 

 peltate leaf (UydrocotyU vulgarU). '» Looped (Myosotit paluHris). "Arched (Phyllaijathis Tutundi/olia). "Radiate 

 and undivided (Acer platanaidtt). " Looped {Hugenia). 



of the margin, as in Bartsia, Eyebright, and Yellow-rattle {Bartsia, Euphrasia. 

 and Rhinanlhua), and, generally speaking, in all Rhinanthacese (see fig. 149*). 



