LEAVES. GENERALLY. 71 



Decussated, crossing- each other in pairs, fig. 14. 



Distichous, two-rowed, fig. 15. 



Close, pressed to the stem. 



Inflexed, fig. 1, pi. 32. 



Erect, fig. 2. 



Patent, or spreading, fig. 3. 



Horizontal, fig. 4. 



Reflexed, fig. 5. 



Revolute, the summit rolled backwards, fig. G. 



With respect to the mode in which leaves are con- 

 nected to the plant, they are said to be 



Petioled, when on a foot stalk, fig. 7. 

 Sessile, when there is no foot stalk, fig. 8. 

 Amplexicaule, when embracing the stem, fig. 9. 

 Decurrent, running down the stem, fig. 10. 

 Sheathing, fig. 11. 

 Connate, when opposite and sessile, and united 



at their base, fig. 12. 

 Perforated, the stem running through the leaf, 



fig. 13. 

 Peltate, the leaf-stalk inserted into the disk of 



the leaf, fig. 14. 

 Equitant, compressed and embracing each other 



at the base, fig. 15. 



Leaves are either Evergreen, permanent through 

 one, two, or more winters, so that the branches 

 are never naked, as in the Ivy ; or 



