Bush — North American Species of Chaerophyllum. 59 



Carolinian and Louisianian areas. Alabama, Arkansas, 

 District of Columbia, Delaware, Illiuois, Indian Territory, 

 Iowa, Kansas, Michigan, Mississippi, Missouri, New Jersey, 

 New York, North Carolina, Ohio, Ontario, Pennsylvania, 

 South Carolina, Tennessee and Virginia. 



This species is very variable as to pubescence, some plants 

 being nearly or quite smooth, and others pubescent to a 

 marked degree. Fully 30 per cent, of all the specimens ex- 

 amined were very pubescent, the remainder being smooth or 

 smoothish. This variability of pubescence has been the cause 

 of much confusion, as very pubescent plants of this species 

 have been placed with C. Tainlurieri^ aud smooth or 

 smoothish plants of C. Tainturieri, under this species. The 

 species has a more northerly range than any other of the genus, 

 reaching its southerly limit in Northern Alabama and Missis- 

 sippi, the specimens upon which Dr. Chapman based hi* 

 C. procumbens being clearly referable to O. Tainturieri. 



Specimens examined. — Illinois: Proviso, Agnes Chase, May 17, 1900? 

 American Bottom, Engelmann, 734, 1842; same locality, (?eyer. — Indian" 

 Territory: Limestone Gap, 5ufZer, 1875. — Iowa: Moscow Lake, Beppert, 

 599, May 8, 1894; Decatur County, Fitzpatriek, May 8, 1897; Marshalltown, 

 Pammel, 323, May 8, 1897. — Kansas : Leavenwortli County, Hitchcock, 699, 

 1896; Turner, Mackenzie, Aj^ril 26, 1896. — Missouri: Greene County, 

 Blankinship, May 6, 1888; same locality, Weller, April 20, 1889; same 

 locality, Shepard, April 18, 1879; Independence, Bush, 149, May 23, 1894; 

 Courtney, Bush, 78, April 19, 1896; Jackson County, Bush, April 30, 1888; 

 Jefferson City, Krause, May 9, 1869; St. Louis, Liiders; same locality, 

 Engelmann, 1833. — New Jersky: Camden, Parker, 1866. — New York: 

 Ithaca, collector not given. May 8, 1880. — Ohio: Cincinnati, Lloyd, April 

 26, 1890; same locality, B. Frank, April, 1835; Norwalk, Stair, May 3, 

 1894. — Pennsylvania: Philadelphia, M. C. Lea, 1843; same locality, 

 Bedfield, 2540, May 24, 1872; same locality, Beyrich, in Bernhardi Herba- 

 rium. — Tennessee : No locality, Buckley. 



2. Chaerophtllum Shortii (T. & G.) B. F. Bush. 



Chaerophyllum procumbens Shortii T. & G. Fl. 1 : 637. 1840. 



Stems 2-5 dm. tall, erect or decumbent, branched, pubes- 

 cent or nearly smooth ; fruit broadly oblong to ovate, about 

 6 mm. long, obtuse and blunt at the apex, not at all beaked,, 

 pubescent; ribs narrow, much narrower than the intervals.. 

 Moist rich ground in woods, April and May. 



Type locality : "Kentucky;" collected by Dr. Short, 



