144 TREES AND SHRUBS 



4. XYLOSTEON Juss. 



Erect branching shrubs with opposite simple leaves, entire, 

 sessile or short-petioled, not connate above; flowers sessile in pairs 

 on the ends of solitary axillary peduncles: subtended by 2 minute 



bracts and bractlets; hypanthium more or less united; calyx minute or 



obsolete; corolla broadly funnelform. 1 cm. long or more, saccate 



at the base, limb 5-lobed nearly equal; ovary usually 2-celled; berries 



distinct or didvmous, red. 



1. X. utahense. 



4. DISTEGIA. Raf. 



Very simiar to the last but the flowers sometimes in threes 

 and not coherent, the bracts leaflike and the bractlets strongly ac- 

 crescent and purplish, surrounding the dark purple or black berries. 



1. i) Involecrata. 



