250 COMPOSITAE 
64. PECTIS L. Syst. Nat. ed. 10. 1221. 1759. 
Low, branching, aromatic, annual or perennial herbs. Leaves opposite, glandular-dot- 
ted, entire, usually with a few marginal setae. Inflorescence cymose, the heads radiate. 
Involucre various ved ours turbinate), the phyllaries 3-12 in 1 series and carinate below, 
often glandular-dotted. Receptacle naked. Ray-flowers perfect, usually equaling the 
bracts in number, the ligules yellow or tinged with red or purple. Disk-flowers perfect, 
few, with short tube and funnelform throat, the limb 5-lobed and spreading. Anthers 
what angled. Pappus of scales, awns, or bristles, sometimes lacking. [From the Greek 
word meaning to comb, referring to the setose margins of the leaves 
A genus of about 70 species, natives of Mexico and South America and Smdbeuaues United States. Type 
species, Packs ciliaris L. 
1. Pectis papposa A. Gray. Chinch-weed. Fig. 5411. 
Pectis papposa Harv. & Gray ex A. Gray, Mem. Amer. Acad. II. 4: 62. 1849. 
Dichotomously much-branched annual 1-2.5 dm. high with yellowish green herbage. Leaves 
narrowly linear with 2-5 an ae, setae n near the base, 1-6 cm. long ; heads yellow-flowered in leafy 
cymes, the peduncles 1-3 cm. lon hyllaries ee , 7-9, linear ; involucre keeled and gib- 
us at base, obtuse and scarious ray-flowers 7-9, the ligules m i isk- 
flowers 10-15; achenes black, 1 near-clavate, sparsely strigulose, 4-5 mm. long; pappus of disk- 
flowers of 12- 20 short plumose biciatlon these sometimes r se pase toa crown, that of the ray- Hoders 
a short crown of united scales sometimes cotta into an 
needs and gravelly soil of the des Lower Sonoran Zone; Dea ie ley region, Inyo County, California, 
and eastern Mojave Desert south hitack a f 5 Hing Desert to 5 pte California, east to Utah and New 
Mexico and south to adjacent Mexico. Type locality: California. Collected by Coulter. June—Oct 
65. NICOLLETIA A. Gray ex Torr. in Frem. Second Rep. 315. 1845. 
Perennial gebsae herbs with slender rootstocks, and stems corymbosely few- branched 
above. Leaves alternate, pienately’ D arted. Heads large, terminating the branches. In- 
volucres tu thin fete, the phyllaries in “¢ series with a single gland at the tip, subtended by 
a 
tuft of hairs at the apex. Achenes narrowly pte fc 0iie hirsute. Pappus in 2 series 
the inner of 5 lanceolate, awn-tipped paleae; the er of numerous et bristles. 
Name in honor of Nic ollet, an early American Ente 
A genus of 3 species, natives of southwestern United =e es Mexico. Type species, Nicolletia occt- 
Rentatte® ‘A. Gray. 
1. Nicolletia occidentalis A. Gray. ee Fig. 5412. 
Nicolletia occidentalis A. Gray ex Torr. in Frem. Second Rep. 316. 
Stout, glaucous, ill-sme ne: — als with erect 8 stems 2-6 dm. high, these pi 
arising ssn deep-seated root-c . Leave oe 3-5 cm. long, pectinately pinnatifid, with a 
mm 
Ye 
the — ming fewer, about on ey “third as bee ee the principal phyllaries ; rays pinkish, 4-5 
mm. long nes strigose-hispidulous, 8 mm. long, the awn-tipped pappus-paleae equaling the 
achenes, the beatles a little short 
Sandy soil, Lower Sonoran saa western edges of the Mojave and Colorado Deserts, California, from San 
Bernardino County to San gad County. Type locality: banks of the Mojave River, San Bernardino County. 
Hole-in-the-sand 
Tagetes — L.. Sp. ee at, Rid Annual, 3-8 dm. high, with conspicuous glands; leaflets lanceolate- 
serrate ads in a congested c volucres usec rays villous: minute. This species ada ee ted at 
Riverside, Riverside County, Caltieinis.. in 1921 and apparently has not become established as a we 
66. DYSSODIA Cav. Descr. 202. 1802. 
Annual or perennial, strong-scented herbs often with a woody. caudex or shrubs, the 
herbage with conspicuous, translucent, oil glands. Leaves opposite or alternate, entire 
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apex. Receptacle naked or fimbrillate. 
ssn when present pistillate, fertile. apse hermaphrodite, fertile, the throat 
trumpet-shaped, scarcely ace from the tube, lobes 5. Anthers obtuse at base. Style- 
tian teh slender, truncate or sometimes appendag ed. er chenes narrowly obconic; ea 
paleae many, tipped with 13 bristles or ai into many bristles. [From the Greek 
word meaning an evil smell.] 
