498 Mackenzie : Onosmodium 



shortly appressed-strigose on both sides, the pubescence above 

 sometimes quite papillose, but never as strongly developed as In the 

 other species : bracts oblanceolate : fruiting pedicels 6 mm. long 



or less : calyx-lobes lanceolate-acuminate, 6-8 mm. long, hairy 



vvnth spreadii^g pubescence : corolla 9 mm. long (less than twice 

 the length of the calyx), glabrous, light-yellowish, the lobes 3 

 mm. long, narrowly lanceolate-acuminate bearing apical tufts of 

 hairs : nutlets 2.5 mm. long or less, obtusish or acutish, little if at 

 all constricted at base. 



All other species of Onosnwdiuui have dirty-white corollas often 

 distinctly tinged with green, but 0. virginianum has distinctly yel- 

 low corollas, a character which added to the peculiar corolla-lobes 

 readily distinguishes it from all others. 



The standard manuals of the country give this species a range 

 over the entire United States east of Kansas, but I have been able 

 to find no specimens collected very far from the Atlantic or Gulf 

 coasts, and am convinced that the specimens collected in the 

 interior of the United States and referred to this species have been 

 wrongly determined. This conclusion is borne out by the fact 

 that in the collections examined by me are numerous specimens 

 from the interior erroneously referred to this species, and it is on 

 these specimens I believe that the extended range is based. As 

 far as I can determine, the species, with its variety mentioned below, 

 ranges along the Atlantic coast from Connecticut to Florida and 

 thence west along the Gulf coast to Louisiana. 



Specimens examined. Connecticut : Bisscll, 6 August 1901, 

 Oxford. New Jersey : Parker^ 2 June 1865, Burlington County ; 

 Pollard, 25 September 1897, Clementon. Pennsylvania: BritioTi, 



J 



J 



Virginia : Addison Brozvn ct al., 7 

 'mall & Heller, 3 June 1891, Dan- 



ville. North Carolina: Biltmorc Herbarium 4.2^1. 17 J 



1897, Hamlet, Richmond County. South Carolina: Gibhcs, 



May 1834, Columbia; Gibhes, 1886, Andersonville. Georgia: 



JiQlxich 266 ; Cuthhcrt, 3 May 1900, Augusta; Small, 9-12 July 



1895, Albany, Dougherty County; Small, 20 July 1893 and 2 



July 1895, McGuire's Mill, Gwinnet County. Florida: 

 66jj, 9 ]\ray 1900, Seville, Volusia County; OtrtissjogS, April- 

 May, Duval County; Curtiss 4 170, n April 1893, J 



Curiiss 472J, 28 April 1894, Jacksonville; Lighthipe 633, April 



