Bailey sc Bailey: Woody Plants of National Parks 



67 



bearing clusters very small, enlarging in fruit to about i/^ inch long; fruits 

 small nutlets enclosed by thickened bracts. 



Occurrence. — YOSEMrTE, 2,000 to 4,600 feet: South Fork Merced River; Merced 

 Canyon near Arch Rock ranger station; Big Creek below Mariposa Grove. 



2. Wax Myrtle, Sweet-gale (Myrxa gale L.). — Similar to Sierra 



SAcetbay but the leaf-blades with shorter stalks and the nutlets covered 



with a coat of wax. 



Occurrence. — Olympic: Lake QuinauU. isle royale, common along margins of 

 lakes and bogs: Lake Richie; Hidden Lake; Scoville Point. 



Elm Family (Ulmaceae) 



Hackberry, Paloblanco (Celtis Douglasi Planch.), fig. 22. — Usually 

 a spreading shrub 8 to 15 feet high, or sometimes a small tree up to 30 feet 

 high, with rounded crown and short trunk; bark ashy-gray, rough with promi- 

 nent projecting ridges; leaves egg-shaped, somewhat heart-shaped and unequal- 

 sided at the base, thick and leathery, 3 -veined from the base, dark green 



Fig. 22. Hackberry (Celtis Douglasi). 



