RlIAMNACEAE. 



215 



CONDALIA. 



(Family Rhamnaceae). 



Intricately branched spiny 

 shrubs or small trees of 

 the southwest. Twigs slender, 

 usually obscurely 5-angled, gray: 

 pith small, roundish, continuous. 

 Buds sessile, small, rounded, with 

 about 2 exposed scales, solitary, 

 or collaterally branched in spine 

 formation, more or less developed 

 as short spurs. Leaf-scars alter- 

 nate, crescent-shaped, minute, 

 somewhat raised: bundle-trace 1, 

 indistinct: stipules persistent be- 

 side the bud. The first and last 

 species are frequently treated un- 

 der Zizyphus. 



Though the Spanish word 

 chaparral, now familiar in the 

 southwest, properly means a 

 thicket of scrub oak, it has come 

 into general use as the designa- 

 tion of any dense tangle of low stiff shrubs, Condalia, Ceano- 

 thus and Lycium are prominent spiny constituents of such 

 tangles. 



1. Tree. (Purple haw). 

 Shrubs. 2. 



2. Twigs glaucous, with black dots. 

 Twigs not glaucous when mature. 3. 



3. Twigs terete, with roughening bark. (2). C. spathulata. 

 Twigs rather evidently angled. 4. 



4. Glabrate. (3). C. lycioides. 

 Persistently somewhat white-hairy. C. lycioides canescens. 



C. obovata. 



(1). C. obtusifolia. 



