BOTANY. 



113 



Pig. 22 



rig. 23. 



Cordate leaves are heart-shaped, as in the lilac and aster 

 cordifolium. Fig. 22. 



Sagittate leaves have the form of an arrow-head, as in the 

 sagittaria. Fig. 23, #. 



Reniform leaves are kidney-shaped, as in the wild ginger 

 and ground ivy. Fig 24. 



Linear leaves are narrow, long and straight, as in the grasses 

 and grains. Fig. 21, c. 



Deltoid leaves are in the form of the Greek letter delta,- or 

 nearly triangular, as in the Lombardy poplar. Fig. 21, e. 



Acerose leaves are long, narrow and needle-shaped, and 

 clustered together, as in the pine. Fig. 23, b. 



Piimatified, or feather-cleft leaves, have deep clefts between 

 all their veins, separating the leaf into parallel segments, as in 

 the lepidium. Fig 25, d. 



*10 



