214 NORTH AMERICAN FLORA [VoLuME 34 
base; glands in 2-4 rows; heads in leafy cymes; peduncles 1-2 em. long; involucre 3-4 mm. 
high, nearly as broad, purplish; bracts linear, acute, only slightly carinate; ray-flowers 5; 
ligules 1.5-2 mm. long; disk-flowers 3-5; corollas less than 2 mm. long; achenes 2 mm. long, 
glabrate or short-hispid; pappus of a crown of short united squamellae. 
TyPE LocaLiIty: Consoquitlo, Mexico. 
DIsTRIBUTION: Southern Mexico to Guatemala. 
65. Pectis filipes Harv. & Gray; A. Gray, Mem. Am. Acad. II. 
4: 62. 1849. 
Pectis filipes subnuda Fernald, Proc. Am. Acad. 33: 76. 1897. 
A slender annual; stem 1-5 dm. high, diffusely branched, glabrous or scabrous, shining; 
leaves glabrous or slightly scabrous, 3-6 cm. long, 1-3 mm. wide, with 1-5 pairs of basal bristles; 
glands marginal; heads in leafy cymes; peduncles 2-8 cm. long; involucre turbinate, 4-6 mm, 
high, 3-5 mm. broad; bracts oblanceolate, obtuse, slightly keeled below, often glandless; ray- 
flowers 5 or 6; ligules 5-6 mm. long, 1-1.5 mm. wide; disk-flowers about 5; corollas 3 mm. 
long; achenes 4—5 mm. long, hispidulous; pappus of 1-4 awns, 2.5—-4 mm. long, and sometimes 
a few blunt squamellae at their base. 
Type LocaLity: ‘ California.” 
DISTRIBUTION: Western Texas to Arizona, Sonora, and Chihuahua. 
66. Pectis multiseta Benth. Bot. Voy. Sulph. 20. 1844. 
A diffuse annual; stem 1-3 dm. high, puberulent, much branched; leaves lanceolate, 1—2.5 
em. long, 2-4 mm. wide, serrulate, with bristle-tipped teeth; glands scattered, of various sizes; 
heads in leafy cymes; peduncles 1-3 cm. long; involucre turbinate, about 4.5 mm. high; 
bracts 5, obovate-cuneate, ciliate, with several elongate glands; ray-flowers about 5; ligules 
4-6 mm. long, 2.5—3 mm. wide; disk-flowers 15—20; corollas 3 mm. long; achenes 3-4 mm. long, 
hispidulous-puberulent; pappus of the ray-flowers of 3, of the disk-flowers of 1 or 2, stout, 
subulate, retrorsely scabrous awns, or sometimes reduced to a mere crown of short united 
squamellae. 
TYPE LocALity: Cape San Iwucas, Lower California. 
DistriBuTion: Lower California. 
67. Pectis Coulteri Harv. & Gray; A. Gray, Mem. Am. Acad. II. 
4: 62. 1849. 
A slender annual, or perhaps sometimes perennial; stem diffusely branched, 1-2 dm. 
high, puberulent; leaves narrowly linear, 1-3 cm. long, 1-2 mm. wide, usually pectinately 
divided towards the base into 3-5 pairs of linear-subulate bristle-tipped lobes; glands usually 
in single marginal rows; heads in leafy cymes; peduncles 0.3—3.5 cm. long; involucre cylindro- 
turbinate, 5-7 mm. high, 4-5 mm. broad; bracts 5, rarely 6, linear-oblong, ciliate; ray-flowers 
5 or 6; ligules 5—7 mm. long, 2 mm. wide; disk-flowers 7-15; corollas 3 mm. long; achenes slender, 
4-5 mm. long, strigose; pappus of the ray-flowers of 3-6, of the disk-flowers of 2-5, stout, 
subulate, spreading awns about 1.5 mm. long. 
Type LocaLity: ‘California’ [probably on the Gila River, Arizona*]. 
DistrrBution: Arizona and Sonora. 
68. Pectis Bennettii Klatt, Leopoldina 25: 108. 1889. 
A diffusely branched annual; stem terete, puberulent, 1-2 dm. high; leaves linear-oblanceo- 
late, acute, sinuate-dentate or entire, 1—2.5 cm. long, 3-4 mm. wide, with 3-5 pairs of bristles 
and glands in 2 rows on each side of the midrib; heads in leafy cymes; peduncles 2-3 em. long; 
involucre campanulate, 4 mm. high and nearly as broad; bracts 5, oblong-oblanceolate, 
strongly keeled, conspicuously glandular-dotted, puberulent; ray-flowers 5; ligules about 5 
mm. long and 2 mm. wide; disk-flowers about 8; corollas 3 mm. long; achenes 3.5—4 mm. 
* See Coville, Bot. Gaz. 20: 528. 
