638 



EUPHORBIACEAE 



Crotonopsis 



50 



Map 1319 



Croton capitatus Michx. 



50 



Map 1320 



Croton monanthogynus Michx. 



1929 Bechtel collected it in Montgomery County. This species also seems 

 to be adventive from the south. 



N. J. to Fla. and Tex. ; northw. in the Mississippi Valley to 111., Iowa, 

 and Kans. 



3. Croton monanthogynus Michx. Map 1320. In pastures and fal- 

 low fields, along roads and railroads, and rarely in open woods. South 

 of Laurel in Franklin County and west of Paoli in Orange County I have 

 seen it as a pernicious weed over acres of pasture land. Stock will not 

 eat it. On account of its weedy nature, and since it was unknown to the 

 early botanists, I think this species is adventive in Indiana although 

 J. M. Coulter (Bot. Gaz. 2: 146. 1877) says: "All along over the knobs, 

 on the way to the Barrens, we encountered any quantity of Croton 

 monanthogynus." He doubtless followed an old road of travel where it 

 may have been introduced. Dr. Clapp, who was well acquainted with the 

 area, and who botanized the area about New Albany for 20 miles from 

 1832-1862, did not find this species. Riddell in his Flora of the Western 

 States (1835) knew it only from St. Louis. 



N. C, s. Ind. to Iowa and e. Kans., southw. to Fla. and Tex. 



4350. CROTONOPSIS Michx. 



[Pennell. The genus Crotonopsis. Bull. Torrey Bot. Club 45: 477-480. 



1918.] 



Spikes short, of but 1 or 2 fruits; staminate flowers less than 1 mm broad; fruit ovoid, 

 with an evident median vein on each side; leaves lanceolate to narrow-lanceolate, 

 the stellate pubescence overlapping 1- C. elliptica. 



Spikes longer, of 3 to 6 fruits ; staminate flowers more than 1 mm broad ; fruit ellipsoid, 

 without an evident vein on the side; leaves linear-lanceolate, the stellate pubes- 

 cence not overlapping. (See excluded species no. 419, p. 1070.) C. linearis. 



1. Crotonopsis elliptica Willd. Map 1321. In a hard, white, minim- 

 acid, clay soil in a post and pin oak flat in Spencer County about 4 miles 

 northwest of Chrisney. It was abundant in a 40-acre fallow field and 



