Mackenzie : Onosmodium 505 



cock^iy July 1890, Fish Lake. Missouri : Eggert, 12 July 1877^ 



St. Louis. 



6. Onosmodium bejariense A. DC. 



Onosniodinvi bejariense K, DC. in DC. Prodn 10 : 70. 1846. 



An erect perennial, about 6-9 dm. high, branching above, the 

 branches ascending; stem, especially below the branches, stiongly 

 hispid pubescent with white or whitish hairs 4-6 mm. long ; 

 branches softly appressed-pubescent, also with numerous spread- 

 ing whitish hairs 2-4 mm. long : leaves lanceolate or the lower 

 oblanceolate-spatulate and long-tapering at the base, the well- 

 developed stem-leaves 8-13 cm. long and 14 mm. wide, acute, 

 sessile, strongly 5— 7-nerved, the nerves prominent on both sur- 

 faces, softly appressed-pubescent below, or sometimes nearly gla- 

 brous between the veins, occasionally with spreading pubescence 

 also on the veins, strigose-pubescent with papillose hairs above^ 

 noticeably paler beneath than above, at least in the cnse of the 

 later leaves: pedicels 6 mm. long or less, the calyx-lobes linear- 

 lanceolate, 8-10 mm. long, acute, appressed-pubescent and long- 

 ciliate at base: well-developed corollas 14 mm. long, very finely 

 canescent outside, often appearing nearly glabrous, and with a few 

 spreading hairs on the lobes, the lobes 3-4 mm. long, triangular 

 in outline, but tapering to a long-acuminate often abruptly bent 

 apex: nutlets 3 mm. long, obtusish or acutish, from little' to quite 

 noticeably constricted at base. 



A species as yet known only from southwestern Texas, from 

 whence it was first described. 



Specimens examined. Texas: Lindheimer, i848.^ew Braun- 



fels; Wil kinson 8^^ 1897. and 12^ San Antonio; Lindheimej\ 



-^ 



, Brazos \ Jermy, Gillespie County ; Stanfield g8, San Marcos ; 



Bush 1208 , 24 March 1902, San Antonio. 



7. Onosmodium subsetosum Mackenzie & Bush 



Onosuiodinm subsetosiivi Mackenzie & Bush ; Small, Fl. Southeast. 



U. S. looi. 1903. 



An erect perennial, about 6-10 dm. high, branching above, the 

 branches ascending ; stem very glabrous, with the exception of a 

 very few short widely scattered appressed hairs ; branches ap- 

 pressed-pubescent with very short white hairs, the pubescence not 

 at all spreading : leaves lanceolate, 9 cm, long or less, 10-18 mm. 

 wide, typically 2.5 cm. long and 14 mm. wide, strongly acute, 

 tapering to the sessile or very nearly sessile base, prominently 5-7- 

 nerved, appressed papillose-hispid above and whitish appressed- 



