82 University of Texas Bulletin 



Lindheimera texana Gray & Engelm. Te as Star. 



Abundant in open places everywhere. A coarse plant with large, 

 four or five-rayed, yellow heads. 



Texas. 



Marshallia caespitosa Nutt. 



Moist soil in the Edwards Plateau. 

 Southern prairie states. 



Marshallia obovata Beadle & Boynton. 

 Moist soil in the Edwards Plateau. 

 Southeastern states. 



Melampodium cinereum DC. Mountain Daisy. 



One of the most abundant herbaceous plants of the dry upper 

 slopes of the Edwards Plateau. A perennial with handsome bright- 

 white heads. 



Southern central states. 



Parthenium Hysterophorus L. 



Very common on roadsides and waste places. A homely weed with 

 very small dense white heads. When not in bloom the plant re- 

 sembles the western Ragweed. 



Gulf states and tropical America. 



Ratio ida columnaries D. Don. Cone Flower. Mexican Hat. 



Very common in fields, roadsides and waste ground. Heads with a 

 cylindrical center, and yellow, brownish, red, or parti-colored rays, 

 Ratibida is commonly called Nigger Head, but the elongated center 

 makes this name inappropiate. 



Texas. Prairies from Canada to Mexico. 



Rudbeckia bicolar Nutt. Nigger Head. Black-eyed Susan. Cone 

 Flower. 



Open moist woods. A plant about two feet high; with large heads, 

 dark centers and yellow rays. 



Southern central states. 



Sanvitalia ocymoides DC. 



Abundant on the flood plain of Shoal Creek near the Spring. 

 Texas and Mexico. 



Sclerocarpus uniserialis B. & H. 

 Not abundant here. 

 Texas and Mexico. 



