1070 Excluded Species 



was discovered in 1929 by E. D. Hull, along the south end of Henry Street, 

 Gary, in Lake County. I visited this place in 1934 and the plant was found 

 not only persisting but spreading. Since this is the only colony now 

 known, however, it seems best to exclude the species until other colonies 

 are found. 



Nat. of Eu. ; occasional in Atlantic Coast States, also 111. to Kans. 

 and Nebr. 



416. Zanthoxylum Clava-Herculis L. Hercules-club. Reported from 

 Fountain County by Brown, a geologist, under the name of Zanthoxylum 

 carolinianum. There is no doubt that this record should be transferred 

 to Zanthoxylum americanum. 



Va. to Fla., westw. to Tex. and Ark. 



416a. Ptelea trioliata var. mollis T. & G. of authors is referred to 

 Ptelea trifoliata var. Deamiana Nieuwl. See Amer. Midland Nat. 2 : 178- 

 180. 1912. 



417. Polygala incarnata L. Reported from Eggleston, Indiana by 

 Higley and Raddin. Since Eggleston is in Illinois, the authors evidently 

 made a mistake. Since, however, this species has been reported three times 

 as coming from the area about Chicago, and since it was a native of the 

 original prairie, it should be sought in Indiana. There is no specimen in 

 the Gray Herbarium. 



N. J., s. Ont., Wis., and Nebr., southw. to Fla., Ark, and Mex. 



418. Polygala Nuttallii T. & G. Reported from Jefferson County by 

 J. M. Coulter and C. R. Barnes. Probably a wrong determination was made 

 since the known range of this species is south of our area. There is no 

 specimen. 



S. Mass. to Ga., westw. to Ala. and Ark. 



419. Crotonopsis linearis Michx. Reported by Meyncke as "common" 

 in Franklin County. The two species of Crotonopsis were not separated 

 in the manuals of Meyncke's time, and since we have no specimen, we have 

 no way of knowing what he had at hand. 



Coastal Plain, S. C. to Fla. and e. Tex. ; inland near the Mississippi River 

 to southeastern Mo. and 111. 



420. Ricinus communis L. Common Castor-bean. Our only report is 

 that of Young from Jefferson County who says: "Commencing to escape 

 into roads and streets." I have never seen it as an escape and since we have 

 no additional records it seems best to regard it, for the present, as a 

 chance escape. 



Introd. from the Tropics. 



421. Euphorbia Ipecacuanhae L. (Tithymalopsis Ipecacuanhae (L.) 

 Small of Britton and Brown, Illus. Flora, ed. 2.) This species is listed in 

 both Gray's Man., ed. 7 and Britton and Brown's Illus. Flora, ed. 2 as occur- 

 ring in southern Indiana. In a catalogue of the plants of Indiana published 

 in 1881, it was given as found on "the knobs," and in Marion County, 

 without the names of the collectors. It was reported in 1819 by Dr. Mc- 



