TREES AND SHRUBS 



133 



I. ARBUTUS. 



'Leaves elliptic, lanceolate, acute, glabrous. 1. A. arizonica. 



'Leaves oblong or ovate, obtuse, permanently 



pubescent beneath. 2. A. texana. 



2. ARCTOSTAPHYLOS. Adans. Manzanita 



Erect shrub, 3 to 6 feet high; leaves oblong, 



acute or acutish; branches not glandular. \' a. pungens 



Creeping shrub; leaves oblanceolate or obovate, 



obtuse or retuse; branches glandular. 2. A. uva-ursi. 



VACCINIUM L. Huckleberry 



Low shrubs with small alternate leaves and small solitary 

 axillary flowers; calyx lobes nearly obsolete; corolla globular, limb 

 5-lobed; stamens 10; anthers prolonged upward into tubes, opening 

 ; by external pores; fruit a black or blue berry. 



1. V. oreophilum. 



