XII. 

 WEST NINETIETH STREET AND VICINITY 



As you take the Walk at West Ninetieth Street, 

 southerly side of the Drive, and follow it around to 

 where it passes under the Drive through an Archway, 

 you will have a good chance to examine Chinese cork 

 trees, for there are some specimens of them on the 

 right of the Walk, just as it descends to pass beneath 

 the Arch. You can know them by their long, com- 

 pound leaves, which closely resemble those of the 

 ailanthus. If you pass through the Arch and follow 

 this path around to the junction with the Drive Walk, 

 at its junction, in the left or northwest corner, stand- 

 ing close together, you will find a good-sized red birch, 

 with rough bark and rhombic ovate leaves, and a 

 Chinese juniper with stiff, sharp-pointed, awl-shaped 

 and scale-shaped (on some of its branchlets) leaves. 

 They are both interesting studies. 



Across the Drive from these, a little south of east, 

 close by the border of the Drive itself, you will find 

 sea buckthorn, a tall, sparse shrub, with very small, 

 narrow leaves which are grayish green on the upper- 

 sides, but silvery beneath. There are also, generally, 

 reddish scales on the undersides. In May the shrub 

 puts out its small, two to three-clustered, yellowish 

 flowers, and these change into bitter orange berries, 



