Mackenzie : Onosmodjum 501 



nutlets 2-3 mm. long, very obtuse to acutish, strongly constricted 

 at base, suborbicular to ovoid, dull, little if at all pitted. 



Onosmodinm caroliuiamim A. DC. is based on Lithospernntm 

 caroliniannm Lam. and on Onosmodinm niolle Michx., the last 

 named being cited as a synonym. That 0. molh is distinct admits 

 of little question. The short description of Lithospcrminn caro- 

 liniannm given by Lamarck lays particular stress on its obtuse 

 corolla-lobes, a character which shows it is not an Onosmodiitm. 

 He also speaks of its ovate-lanceolate leaves. His description 

 certainly does not answer to the plant to which the name 0, caro- 

 hnianum is applied by American authors. DeCandolle himself in 

 taking up this latter name noticed the discrepancies between the 

 descriptions of Lamarck and Michaux, and asked if there were not 

 two species. He apparently knew neither of the species himself 

 In addition to this, Dr. Britton has kindly examined the specimen 

 of Litlwspermnm caT'oliniannm in Lamarck's herbarium in Paris. 

 It is LitJiospermnm Gmelini (Michx.) A. S. Hitchcock, and was 

 collected by Fraser in Carolina. Being the earliest name for this 

 last species, it should be applied to it. It follows that neither the 

 plant of Lamarck nor the plant of Michaux is the Onosmodinm 

 caroliniannm of authors. Under the circumstances I have given 

 the name of Onosmodinm hispidissimnm to the species now under 

 discussion, it being the most hispid species of the genus. 



Specimens examined. New York: "Z. E. G.'\ Onondaga 

 ^lley; S ^B. Buckley , September 183 1, Head of Seneca Lake; 

 Lucy J64, Chenango County. Virgixia : Smnil, 20 ]w\y 1892, 

 Marion, Smyth County; A. Brozim ct al., 5 June 1890, Roa- 

 noke. West Virginia: Millspaugh, 12 August 1S91, Hinton. 

 Maryland: Shriver, 7 August 1 89 1, Cumberland. Nebraska; 



unc 1853, near Council Bluffs. Missouri : Engcl - 

 inaun^ July 1842, St. Louis; Bush, 3 July 1892, Sheffield; Bush 

 j£/, 15 June 1895, Independence ; Mjickcnzie 212, 17 July 1898, 

 Randolph, Clay County; Mackenzie 1161, 30 May 1895, Jackson 

 County. Kansas: Mackenzie, 31 May 1897, Wyandotte County. 

 Louisiana: Hale, Alexandria. Texas: Rcverchon 64^, 1880, 

 Dallas. Indian Territory : Palmer 206. 



