144 NORTH AMERICAN FLORA [Volume 34 



villous, fully equaling the funnelform throat; aehenes 2.5-3 mm. long, that of the ray slightly 

 larger than the rest. 



Type locality: (Type not designated, but the first specimen cited was from Courtney, Mis- 

 souri.) 



Distribution: Missouri to Colorado. New Mexico, and Texas. 

 Illustrations: Britt. & Brown, 111. PI./. 3959; ed. 2./. 4528. 



5. Flaveria angustifolia (Cav.) Pers. Syn. PI. 2: 489. 1807. 



Millcria angustifolia Cav. Ic. 3: 12. 1794. 



Flaveria iniegrifolia Moc. & Sesse; DC. Prodr. 5: 635, as synonym. 1836. 

 Flaveria radicans Moc. & Sesse; DC. Prodr. 5: 635, as synonym. 1836. 

 Flaveria elata Klatt, Leopoldina 23: 146. 1887. 



A dichotomously branched herb; stem 3-10 dm. high, glabrous below, puberulent on 

 the upper part; leaves linear to linear-lanceolate, 3-1 1 cm. long, 2-4 cm. wide, entire or minutely 

 denticulate, glabrous; inflorescence umbellate-corymbiform, nearly naked; heads densely 

 glomerate, 4-9-flowered; involucral bracts usually 3, rarely more, 4 mm. long, the calyculate 

 ones conspicuous, unequal; ray-flower 1 or sometimes wanting; ligule 2 mm. long, 1 mm. wide; 

 disk-flowers 3-5, sometimes 6-8; corollas about 3 mm. long; tube slightly villous, about as 

 long as the funnelform throat ; aehenes nearly 2 mm. long. 



Type locality: "Nova Hispania" [Mexico]. 

 Distribution: Oaxaca and Puebla. 

 Illustration: Cav. Ic. pi. 223. 



6. Flaveria intermedia J. R. Johnston, Proc. Am. Acad. 

 39: 287. 1903. 



A dichotomously branched herb; stem about 3 dm. high, angled, purplish, pubescent; 

 leaves 1-5 cm. long, 2-4 mm. wide, opposite or whorled; inflorescence loose, corymbiform; 

 heads few-flowered; involucral bracts 3, oblong, 3 mm. long or less, the calyculate ones con- 

 spicuous; ligule about 1.5 mm. long; disk-flowers 5 or 6; corollas 2.5 mm. long; tube glabrous, 

 about equaling the throat; achene of the ray 2.5 mm. long, those of the disk-flowers nearly 



2 mm. long. 



Type locality: Plains of Yermo, Durango. 

 Distribution: Known only from the type locality. 



7. Flaveria Palmeri J. R. Johnston, Proc. Am. Acad. 

 39: 290. 1903. 



A perennial herb, with a thickened root; stems several, more or less reclining, branching, 

 glabrous; leaves lance-linear, sparingly denticulate, slightly connate, 1-4 cm. long; heads 

 about 5-flowered, in rather small cymes in corymbiform panicles; involucral bracts 3, oblong, 

 5 mm. long, the calyculate ones 1 or 2, minute; ligule oval, 3 mm. long; disk-corollas 



3 mm. long; tube villous, not longer than the throat; aehenes nearly 2 mm. long. 



Type locality: San Lorenzo de Laguna, Coahuila. 

 Distribution: Known only from the type locality. 



8. Flaveria vaginata Rob. & Greenm. Proc. Am. Acad. 32: 48. 



1896. 



A perennial herb, with a stout lignescent root; stems several, ascending or decumbent 

 or even prostrate, terete, striate, purplish, with the decurrent lines woolly; internodes very 

 short; leaves linear-lanceolate, clasping at the base, gradually attenuate, 1-3-ribbed, pale- 

 green, finely ciliate towards the base, often with fasciculate ones in the axils; heads 6-8-flowered, 

 closely aggregated into terminal solitary or corymbose-paniculate glomerules; involucral 

 bracts 3 or 4, hyaline, 4 mm. long; ligule 5 mm. long, 2- or 3-toothed; disk-flowers 5-7; corollas 

 3 mm. long; achene of the ray 2.25 mm. long, those of the disk-flowers 1.75 mm. long. 



TypB locality: Between Coixlahuaca and Tamazulapan, Oaxaca. 

 Distribution: Known only from the type locality. 



