Ratibida 



COMPOSITAE 



969 



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o 5o 



Map 2120 



Rudbeckia Deamu Blake 



County. Peattie reports it from Lake and Porter Counties and Nieuwland 

 reports it from La Porte and St. Joseph Counties. 

 Mich, to Iowa, southw. to Ala. and Tex. 



3. Brauneria angustifdlia (DC.) Heller. (Echinacea angustif olia DC.) 

 Narrowleaf Purple Coneflower. This species was reported by Hill as 

 having been found in a prairie near Durham, La Porte County, July 4, 

 1892. His specimen is in the herbarium of DePauw University. In 1936 

 R. M. Tryon, Jr. tried to rediscover it but failed. He reports the area now 

 all under cultivation. Peattie reported it from Lake County but I have 

 not seen his specimen. 



Minn, to Sask., southw. to Tex. ; essentially a prairie plant and probably 

 introduced eastward. 



9178B. RATIBIDA Raf. 



Stigmas lanceolate, acute; heads broadly elliptic, about 1.5 times as long as wide at 

 maturity; rays light to bright yellow, generally 2.5-5 cm long; leaf segments mostly 

 lanceolate; angles of achene not ciliate 1. R. pinnate,. 



Stigmas obtuse; heads cylindric, generally more than twice as long as wide at ma- 

 turity; rays yellow, generally 1.5-2.5 cm long, or partly or wholly brownish purple 

 in f. pidcherrima; leaf segments mostly linear; angles of achene usually more 

 or less ciliate 2. R. columnifera. 



1. Ratibida pinnata (Vent.) Barnh. (Lepachys pinnata (Vent.) T. & 

 G.) (Ann. Missouri Bot. Gard. 22: 75. 1935.) Gray-head Coneflower. 

 Map 2123. Infrequent to frequent in all parts of the state, although it may 

 be rare in the Lower Wabash Bottoms. It is generally found in dry or 

 gravelly soil along streams and roadsides and in prairie habitats, where it is 

 rarely absent. It usually forms large colonies and sometimes becomes a 

 weed. 



N. Y. to Man., southw. to Fla. and Tex. ; adventive eastw. to Mass. 



2. Ratibida columnifera (Nutt.) Woot. & Standi. (Lepachys colum- 

 naris (Sims) T. & G. and Ratibida columnaris (Sims) D. Don.) (Rhodora 

 40: 353-356. 1938.) Long-head Coneflower. Map 2124. I have a specimen 



