192 Proceedings of the Biological Society of Washington. 



duller green, inconspicuously and rather sparsely strigillose; petioles naked, 

 not auriculate or decurrent, strigillose, 2 to 10 mrn. long; heads 6 mm. 

 wide, numerous in dense terminal and subterminal flattish panicles 3 to 3.5 

 cm. wide, these somewhat surpassing the leaves; pedicels densely ascend- 

 ing-puberulous, 3 to 7 mm. long; disk obovoid-oblong, 5 to 7 mm. high, 

 2.5 to 3.5 mm. thick; involucre 3-seriate, graduated, 3 to 3.5 mm. high, the 

 phyllaries narrowly oblong, rounded, indurated, 3-vittate, with thinner 

 obscurely herbaceous tip, appressed, white-ciliolate and slightly strigillose; 

 rays about 5, yellow, quadrate, fertile, unequally tridentate, 2 mm. long 

 and wide; disk corollas about 20, yellow, sparsely pilose on the obscure tube, 

 3 mm. long (tube about 0.7 mm.); pales obtuse, pubescent dorsally, ciliate 

 above, 4.5 mm. long; disk achenes cuneate-obovate, blackish, very sparsely 

 strigillose, 3.3 mm. long, narrowly winged below, the wings somewhat 

 broadened above and adnate to the base of the awns; awns 2, slender, un- 

 equal, sparsely strigillose, 1.5 to 2.5 mm. long. 



Type in the U. S. National Herbarium, no. 1,010,064, collected in the 

 vicinity of San Ignacio, Sinaloa, Mexico, 1918-1919, by A. E. Salazar (no. 

 662). 



This species belongs in the section Saubinetia, next to V. abscondita 

 Klatt and V. perymenioides Sch. Bip. It is distinguished from the first by 

 its thin, smooth, merely strigillose leaves, and from the second by its 

 smaller panicles and by having its leaves strigillose, not loosely pilosulous, 

 beneath. The species is named in honor of Sefior Jesus Gonzales Ortega, 

 Head of the Department of Agriculture in Sinaloa, under whose direction 

 these collections were made. 



Otopappus salazari, sp. nov. 



Scandent shrub; branchlets slender, grayish, striate, strigillose; leaves 

 opposite, the blades 9.5 to 12 cm. long, 2.5 to 4 cm. wide, lance-ovate, long- 

 acuminate, often falcate, at base truncate-rounded, obscurely mucronulate- 

 denticulate with scattered teeth, 3-nerved and prominulous-reticulate be- 

 neath, membranaceous, above deep green, evenly strigillose with slightly 

 tuberculate-based hairs and slightly roughish, beneath slightly paler green, 

 strigose along costa, elsewhere evenly but sparsely strigillose ; petioles slender, 

 unmargined, strigillose, 7 to 11 mm. long; heads 12 to 15 mm. wide, about 

 13 in a terminal ternately arranged panicle 6.5 cm. wide; pedicels strigillose, 

 1 to 1.7 cm. long; bracts minute; disk hemispheric, 8 to 10 mm. high, 7 to 

 10 mm. thick; involucre 5-seriate, graduated, 4 to 4.5 mm. high, the phyll- 

 aries oval or oblong-oval, obtuse, indurated, with obscurely subherbaceous 

 midline and slightly spreading apex, strigillose chiefly along midline, ciliate, 

 the outermost oblong-spatulate and subherbaceous, spreading; rays about 10, 

 oval, yellow, fertile, 4.5 mm. long; disk corollas yellow, glabrous, 4.5 to 

 5 mm. long (tube slender, 1.5 to 1.8 mm.); pales acute, spinulose-ciliolate 

 on keel and margin, 6 mm. long; ray achenes trigonous, rather narrowly 

 winged, the wings broadened above and adnate to the awns throughout 

 their length; awns 3, the inner one 1.5 mm. long, the two outer about 0.5 



