Part 1, 1914] CARDUACEAE : HELENIEAE 27 



2. Pappothrix cinerea (A. Gray) Rydberg. 



Laphamia cinerea A. Gray; Torr. Bot. Mex. Bound. Surv. 82. 1859. 



A suffruticose perennial, woody below; stems leafy, branched, 1-2 dm. high, white- 



tomentose when young; leaves opposite, rounded, subentire or sinuate-dentate, 1-1.5 cm. long, 



tomentose when young, glabrate in age; involucre cylindric, about 6 mm. long and 4 mm. 



broad; bracts oblong, acute, tomentose; rays wanting; tube of disk-corollas fully 1.5 mm. long; 



throat nearly cylindric, 3 mm. long; achenes oblong, pubescent, usually with 2 ribs on one or 



both margins; pappus of subulate barbellate awns about 2 mm. long. 



Type locality: Escondido Creek, Texas. 

 Distribution: Western Texas. 



3. Pappothrix cernua (Greene) Rydberg. 



Laphamia cernua Greene, Bull. Torrey Club 25: 122. 1898. 



A perennial with a thick woody caudex; herbaceous stems 5-10 dm. high, glabrous or 



nearly so; leaves 4-8, opposite or alternate, petioled; blades rounded-ovate or deltoid-ovate, 



1-2 cm. long, coarsely dentate, nearly glabrous; heads solitary, nodding at the end of the stem 



or rarely in the upper axils; involucre campanulate, 7-8 mm. high, 8-10 mm. broad; bracts 



oblanceolate, short-acuminate; ray-flowers wanting; disk-corollas orange; tube glabrous, about 



1.5 mm. long; throat cylindric, 3 mm. long; achenes oblong, 2 mm. long, puberulent, somewhat 



callous on the margins ; pappus of many subulate barbellate awns. 



Type locality: Organ Mountains, New Mexico. 

 Distribution: Known only from the type locality. 

 Illustration: Bull. Torrey Club 25: pi. 333, f. 3, 4. 



17. EATONELLA A. Gray, Proc. Am. Acad. 19: 19. 1883. 



Annual or biennial fioccose subacaulescent herbs. Leaves alternate. Heads sessile, 

 radiate. Involucre of 6-8 flat oval or oblong equal bracts. Receptacle plane, naked, alveolate. 

 Ray-flowers present, pistillate, with short ligules. Disk-corollas short, 5-toothed ; tube glandu- 

 lar-granuliferous. Style-branches short, obtuse or truncate. Achenes compressed or thoge 

 of the margins compressed-triangular. Pappus of 2, broad erose or laciniate squamellae. 



Type species, Burrielia nivea D. C. Eaton. 



1. Eatonella nivea (D. C. Eaton) A. Gray, Proc. Am. Acad. 

 19:19. 1883. 



Burrielia nivea D. C. Eaton, in S. Wats. Bot. King's Expl. 174. 1871. 

 Actinolepis nivea A. Gray, Bot. Calif. 1: 379. 1876. 



A dwarf annual (or biennial?) ; stems branched at the base, 25 cm. high; leaves sub-rosulate, 

 sessile, villose-lanate, 1-2 cm. long; heads sessile among the leaves; involucre 6 mm. high, 

 8 mm. broad; bracts about 8, narrowly oblong, floccose; ligules oblanceolate, yellow or tinged 

 with purple, 2 mm. long; disk-corollas yellow, about 2 mm. long, the tube slightly shorter than 

 the campanulate throat; achenes about 3 mm. long, linear-oblanceolate, strongly ciliate on the 

 margins; pappus-squamellae 2, about 2 mm. long, lanceolate, erose-dentate and aristate. 



Type locality: Virginia Mountains, western Nevada. 

 Distribution: Western Nevada and adjacent California. 

 Illustration: S. Wats. Bot. King's Expl. pi. 18, p. 6-14. 



18. LEMBERTIA Greene, Fl. Franc. 441. 1897. 



Annual or biennial floccose low herbs. Leaves mostly alternate. Heads sessile. In- 

 volucre hemispheric; bracts 5, oval, floccose. Ray-flowers often wanting or, if present, not 

 ligulate, not much unlike the disk-flowers but pistillate, smaller, and the throat oblique, cam- 

 panulate, and only 3-toothed. Disk-flowers several; tube glandular-granulif erous ; throat cam- 

 panulate; lobes 4 or 5. Style-branches short, obtuse. Achenes compressed or those of the 

 marginal flowers slightly 3-angular, ciliate on the margins. Pappus of few erose squamellae. 



Type species, Eatonella Congdoni A. Gray. 



