194 



in the serpentine barrens north of West Chester, Pa. ; and on Octo- 

 ber 4 O. E. Jennings discovered it at Hartwick, Allegheny Co., Pa. 

 The year 1931 brought a number of additional localities to light. 

 Dr. S. F. Blake found the plant on August 16 {no. 11379) and 

 September 6 {no. 11398) in five or more separate spots up to half 

 a mile apart at Stoughton, Norfolk Co., Mass. On June 9 of that 

 year Bayard Long found it on a dumping ground, Harrison Avenue 

 near Mill Road, Elkins Park, Montgomery Co., Pa. {no. 35249). 

 In October Dr. Jennings found it at Pittsburgh, Allegheny Co., Pa., 

 and on November 1 S. F. Blake discovered two thriving colonies at 

 Washington, D. C. — the southernmost station thus far recorded. 



On July 19, 1932, E. H. Fames found it along the border of a 

 gravel path, summit of West Rock, New Haven, New Haven Co., 

 Conn. {no. 11451). On August 13 F. J. Hermann collected it in 

 maple woods along the Delaware River, half a mile north of River- 

 ton, Burlington Co., N. J. {no. 3645). W. M. Benner found it on 

 the bank of a roadside ditch at Andalusia, Bucks Co., Pa., on Sep- 

 tember 24 {no. 4655), while on September 29 Dr. Fames found 

 another small colony at New Haven. On October 30, 1932, Dr. 

 Francis W. Pennell discovered it for the first time along a shaded, 

 stony path on his place at Moylan, Delaware Co., Pa. {no. 16135). 



From this point on the records begin to pile up rapidly. The fol- 

 lowing is a chronological listing of them : 



1933 : October 8 — ^weed about garage, 6511 North 8th Street, Oak Lane, Phila- 

 delphia, Pa., /. M. Fogg, Jr., 6227. 

 1934 : June 21 — weedy waste ofif Burr Road, Bridgeport, Fairfield Co., Conn., 



E. H. Eames 11621. 

 September 16 — in moist open lot on South Street, Morristown, Morris 



Co., N. J., R. H. True 295. 

 October 10 — muddy bank along Newton Creek, Oaklyn, Camden Co., 



N. J., B. Long 44957. 

 October 20 — border of Wissahickon Drive, Wissahickon Creek near 



Hartwell Avenue, Fairmount Park, Philadelphia Co., Pa., B. Long 



45118. 

 October 30 — woodland, Moylan, Delaware Co., Pa., F. W. Pennell. 

 1935 : June 11 — moist ground, down slope on Sharp and Dohme property, 



Glenolden, Delaware Co., Pa., E. C. Earle 353. 

 June 25 — Glenolden, Delaware Co., Pa., E. C. Earle. 

 August 19 — waste ground by University of Pennsylvania Botanical 



Garden near 36th and Spruce Streets, Philadelphia, Pa., B. Long 47390. 

 October 12 — shaded roadside bank along Bryn Mawr Avenue, half a mile 



southwest of Bryn Mawr, Delaware Co., Pa., /. M. Fogg, Jr., 10029. 



