Mackenzie : Oxosmodium 499 



1897; Phillips^ Duval County; Nash, March 12-31 and May 4 

 1894, also 28 May 1895, Eustis, Lake County; Hitchcock, June 

 and July 1898, Lake City; Hitchcock, June and July 1894, 

 Eustis; Rngel, July 1843, Aspalaga ; 0Mh^giL,^2 April 1894, 

 Polk County ; Ferg uson 



1900, '*Fla/*; Barrozus {i^i^, Cozzens, CI cap man , and j 



" Fla." Alabama : Earle_ &_ Baka\ 29 May 1S97, Auburn, Lee 



County. Louisiana : Hale, Alexandria. 



Onosmodium virginianum hirs'utum var. nov^ 



Pubescence spreading ; often strongly so. 



This form differs from typical 0. virginianum in the one char- 

 acter only, but on this account has sometimes been confused with 

 other species. It seems to be confined to the southeastern United 

 States ; I have seen specimens from Alabama^ Georgia, Floridai 

 and Mississippi. 



Specimens examined. Georgia : Allincndingcr, Kennesaw Mt. 

 Alabama: Earle & Baker, 29 May 1S97, Auburn, Lee County 

 (type specimen). Florida : Chapman ; Ciirtiss 2og8, May, 

 Jacksonville. Mississippi: Hilgard, May 1859; Tracy jiij, 3 

 May 1896, Columbus. Southern States: Buckley. 



\. 



3. Onosmodium molle Michx. 



Onosmodium molle Michx, Fl. Bor. Am. i: 133. 1803; not of 

 late American authors. 



An erect, much-branched perennial, about 6-7 dm. high, the 

 stem below the branches hispid or in age appressed-strigose, the 

 branches rather densely clothed with short, soft pubescence : larger 

 leaves about 2 cm. broad and 5 cm. long, densely soft-pubescent 

 all over with whitish hairs, the pubescence above and on the veins 

 below spreading, the papillose character of some of the pubes- 

 cence on the upper surface of the leaves hidden by the density of 

 the pubescence ; leaves lanceolate or narrowly ovate-lanceolate, 

 acute, the lateral veins about three pairs: branchlets 3-12 cm. 

 long, the bracts resembling reduced leaves : fruiting pedicels stout, 

 less than 4 mm. long: calyx-lobes 6 mm, long, linear-oblong, 

 obtuse or obtusish, barely twice the length of the nutlets, whitish- 

 pubescent, not strongly nerved: corolla 8-12 mm. long, the tri- 

 angular-acute lobes 2-3 mm. long, the pubescence on the exterior 

 of the corolla confined almost entirely to the lobes: nutlets less 

 than 3 mm. long, obtusish, usually strongly pitted for the genus, 

 and often somewhat constricted at the base. 



