LEAVES. 



49 



Fig. 51. (^. 



Fig. 52. 



Fig. 52, A, \B JlabcUiform, five-parted, c'diatc. 

 B is elliptical, retusc, mucronate. 



C, a leaf of the common plantain ; it is ovate, acute, many-ncrvcd, not reticidatea. 

 Fig. 53, a, Menispcrmum canadcnse ; it is ri<'. 53 



sub-orbicular, threc-lohed, peltate. 



b, Passiflora bifiora ; it is tivo-lobed ; the \ r^ / i ^^ -^^-t^^-^x s\,>«\ 

 lobes are divergent. L<\akL^ / //^\Ns/\ viA^'i'ir/ 



c, Passiflora incarnata ; it is three-part- 

 ed ; the divisions are lanceolate, denticulate ; 

 the petiole glandular. 



Fig. 54, a, is seven-lobed, denticulate, peltate, radiate-veiiied. 



b, Passiflora scrrata ; it is seven-lobed ; the divisions are lanceolate, dentictdate, 

 glandidar. 



c,'Alche7nilla hijbrida ; it is tiine-lobed, denticulate, plicate. 



Fig. 54. 



Fig. 55, a, Jatropha midtifida ; it 

 is many-parted; the divisions are 

 pinnatifid. 



b, Helleborus niger ; the leaflets 

 are sub-petioled, mostly acuminate, 

 denticulate, radiate-veined. 



Fig, 56, a, Pceonia officinalis ; it is 

 .hree-parted, decompound. 



b. Geranium pratense ; it is seven- 

 parted, laciniate. 



c, Leontodon taraxacum (dandelion); it is runcinate ; the divisions triangular^ 

 pointed toward the base ; feather-veined. 



Fig. 56. 



Fig. 55. 



Fig. 57, a, a trifoliate or ternate leaf; 

 the leaflets are ob-cordate, entire. 



b is digitate, five-leaved ; the leaflets 

 are layi^eolate, dtnticulate. 



c has the petioles stipuled and joint- 

 ed (articidated) ; the leaflets are oval 

 and acuminate. 



Explain figtirei, 

 a 



