Pectis stenophylla var. puberula (Greenm.) D. J. Keil

Pectis puberula Greenman, Proc. Am. Acad. 40: 49. 1904
A slender annual; stem 1-2 dm. high, puberulent, often purplish; leaves linear or lancelinear, 1-3 cm. long, 2-4 mm. wide, acute, with a single row of glands on each side and 1-4 pairs of bristles near the base, glabrous on both sides, but slightly hirtellous on the margins and the midrib beneath; heads on solitary axillary peduncles 3-4 cm. long; involucre about 4 mm. high and 3 mm. broad, turbinate; bracts 8, obtusely keeled, blunt, glabrous; rayflowers 8; ligules 2 mm. long; disk-flowers about 15; corollas 3 mm. long; achenes 2.5 mm. long, puberulent; pappus of the disk-flowers of many, of the ray-flowers of 2 slender bristles, about 2 mm. long.
Type locality: Lodiego, Sinaloa. Distribution: Sinaloa.

Pectis scabra Brand. Zoe 5: 226. 1905
A slender delicate annual; stem branching from the base, 1-1.5 dm. high, purple, scabrouspubescent; leaves linear, 1-2 cm. long, 1-2 mm. wide, scabrous above, on the revolute margin and the midrib beneath, with 1 row of glands on each side of the midrib and 1 or 2 pairs of bristles at the base; heads on filiform peduncles from the upper axils; peduncles 2-4 cm. long; involucre turbinate, 3 mm. high and about as broad; bracts 6-8, linear, keeled below the middle, scarious-margined, with 5 or 6 glands, obtuse; ray-flowers 6-9; ligules linear, yellow, 2 mm. long; disk-flowers 10-15; corollas 2.5 mm. long; achenes slightly pubescent; pappus of 1-3 awns or bristles and as many small scales, the awns in the ray-flowers stouter than those of the disk.
Type locality: Cofradia, Sinaloa.
Distkibution: Known only from the type locality.