MORPHOLOGY OF THE LEAF. 



99 



ing of the base lobes of a deeply cordate leaf, as seen in hydro 

 ootyle. It may be orbicular, oval, etc. 



343 



346 



f\ather-veined leaves nJmnst rnmpnimd 34?, Nigella (pinnHtisect). 344, Cheledonium majus. 345, This- 

 tle (Cirbiuiu litnceolatum). 346, Dandelion (runcinate-lyrate). 



296. The following result from deficiency of tissue, causing 

 deep divisions between the veins. Leaves thus dissected are 

 said to be palmately-lobed when either the segments or the si- 



348 



Palmate-veined leaves. 347, Menispermum Canadcnse. 348, Passiflora cerulea. 349, Broussonetia pa- 

 pyri fera. 350, Oak Geranium. 



nuses are somewhat rounded and continuous. The number of 

 lobes is denoted by such terms as bilobate, trilobate, five-lobed, 

 etc. Leaves are palmatety deft and palmately parted^ according 



