432 



Nyctaginaceae 



Iresine 



the railroad yards in Tipton, Tipton County. Doubtless it already has 

 a much wider distribution in the state than our records show. 

 Iowa to Colo., southw. to Ark., Ariz., and Chihuahua, Mex. 



2. Froelichia campestris Small. Map 887a. I have specimens of this 

 species from three counties. One was collected July 7, 1900, by Umbach 

 on railroad ballast near Aetna, Lake County. Another was collected by 

 Miss Madge McKee along a sandy roadside about 6 miles south of Rose- 

 lawn, Newton County. In 1933 I found a large area of it in very sandy 

 soil in a fallow field in sec. 3 in Starke County about two and a half miles 

 northeast of North Judson. This species in time will no doubt become a 

 weed in the sandy areas of this part of the state. Doubtless introduced 

 into the state. 



111. and Wis. to Nebr., southw. to Mo. and Okla. 



2338. GOMPHRENA L. 



See excluded species no. 208, p. 1044. 



2339. IRESINE P. Br. 



1. Iresine rhizomatosa Standley. (Proc. Washing-ton Biol. Soc. 28 : 172. 

 1915.) (Iresine paniculata of recent authors, not Kuntze.) Map 888. Very 

 local in a few low woods and dried-up sloughs in the Lower Wabash 

 Valley. Reported also from Clark, Floyd, and Jefferson Counties. 



Md., Ind. to Kans., southw. to Ala. and cent. Tex. 



80. NYCTAGINACEAE Lindl. Four-o'clock Family 



Involucre remaining unchanged in fruit 2347. Mirabilis, p. 433. 



Involucre enlarging and becoming membranous and reticulate in fruit 



2348. Oxybaphus, p. 433. 



