28 fl> o s t e I 5 i a 



able to make themselves at home in 

 the dry and dusty highway. Many 

 roadside plants occur in great abun- 

 dance. When the dandelions are in full 

 bloom, one may look up a street in many 

 a country town and see two broad golden 

 bands flanking the roadway and giving 

 the scene a wonderfully gay aspect. 

 This great profusion of individuals at 

 certain seasons and in given localities 

 causes striking changes in the landscape. 

 Within a stone's throw of a compact 

 yellow field of dandelions may be a 

 group of Mexican poppy (Argemone), 

 with its showy white flowers and dusty 

 green foliage. In midsummer the sun- 

 flowers line the railroad grades, while 

 early in September the country roads 

 for miles show bands of white on either 

 side due to Euphorbia marginata, or in 

 other places they are pink with a pro- 

 fusion of the tall and beautiful Cleome. 



