Part 2, 1915] CARDUACEAE : HELENIEAE 91 



heads solitary at the ends of the branches; peduncles 5-10 cm. long; involucre hemispheric, 

 8-10 mm. high, 10-12 mm. broad; bracts 10-12, tomentosc, acute; ray-flowers as many, 

 sometimes wanting; ligules light-yellow, 8-9 mm. long, 2.5-3 mm. wide; disk-corollas 3.5-4 

 mm. long; tube densely glandular-hispid, shorter than the sparingly glandular throat; achenes 3 

 mm. long, 4-angled, hirsute; squamellae about 8, unequal, obovate, erose, the longer about 1 

 mm. long. 



Type locality: Mocho Creek Canyon, Alameda County, California. 



Distribution: Central California. 



23. Eriophyllum idoneum Jepson, Fl. \V. Middle Calif. 524. 1901. 



A perennial, with a woody caudex, sometimes flowering the first year; stems several, 



branched at the base, finely white-tomentose, about 3 dm. high; leaves numerous, those 



near the base crowded, 2-3 cm. long, densely white-tomentose beneath, less so above, 3-5- 



divided into mostly toothed or lobed divisions, in the lower leaves ovate or broadly lanceolate, 



in the upper leaves linear or linear-lanceolate; heads solitary or few and cymose-corymbose 



at the ends of the branches; peduncles 3-10 cm. long; involucre short-campanulate, 6-7 mm. 



high, 5-6 mm. broad, densely tomentose; bracts 9-12, acute or acuminate; ray-flowers about 



as many, sometimes wanting; ligules yellow, 7-10 mm. long, about 2 mm. wide; disk-corollas 



3 mm. long, glandular-puberulent; tube shorter than the throat; squamellae oblong, lacerate, 



nearly 2 mm. long. 



Type locality: Vaca Mountains, Napa County, California. 

 Distribution: California. 



24. Eriophyllum achillaeoides (DC.) Greene, Man. Bay Reg. 



207. 1894. 



Bahia achillaeoides DC. Prodr. 5: 657. 1836. 



Bahia lanata achillaeoides A. Gray, Bot. Calif. 1: 381. 1876. 



Eriophyllum caespitosum achillaeoides A. Gray, Proc. Am. Acad. 19: 26. 1883. 



A perennial, with a cespitose suffruticose base; stems 3-4 dm. high, tomentose, decumbent 

 at the base, corymbosely branched above; individual peduncles short, 1-3 cm., rarely 4-5 

 cm., long; leaves ovate in outline, 1-3 cm. long, bipinnatifid with short acute divisions, densely 

 white-tomentose beneath, floccose and glabrate above, with revolute margins; involucre 

 hemispheric, 6-7 mm. high, 8-10 mm. broad; bracts about 15, acute; ray-flowers as many; 

 ligules bright-yellow, 6-7 mm. long, 3 mm. wide; disk-corollas 3 mm. long, densely glandular- 

 hispid throughout; tube shorter than the throat; achenes 3 mm. long, more or less hirsutulous; 

 squamellae ovate, unequal, 0.3-0.6 mm. long. 



Type locality: California. 



Distribution: Coast Ranges, California, from San Francisco northward. 



25. Eriophyllum Watsoni A. Gray, Proc. Am. Acad. 19: 26. 1883. 



Bahia leucophylla D. C. Eaton, in S. Wats. Bot. King's Expl. 17, in part. 1871. Not B. leucophylla 



DC. 1836. 

 Bahia gracilis A. Gray, Bot. Calif. 1: 382, in part. 1876. Not B. gracilis H. & A. 1838. 



A perennial, with a short cespitose caudex; stems 1-1.5 dm. high, white-tomentose, simple 

 or slightly branched; lower leaves cuneate-oblanceolate, about 1 cm. long, 3-5-toothed at 

 the apex, white-tomentose beneath, floccose above; stem-leaves mostly pinnatifid with linear 

 divisions, 1-2 cm. long, revolute-margined ; heads solitary; peduncles 3-8 cm. long; involucre 

 hemispheric, 6 mm. high, 1 cm. broad or less; bracts 9-10, acute; ray-flowers as many; 

 ligules bright- yellow, 5-8 mm. long; disk-corollas 4 mm. long, glandular-puberulent; tube 

 shorter than the throat; squamellae obovate, nearly equal, erose, and nearly 1 mm. long. 



Type locality: Robert's Station, Nevada. 

 Distribution: Oregon, Idaho, and Nevada. 



26. Eriophyllum Bolanderi Rydberg, sp. nov. 



A perennial, with a cespitose, short, woody, base; stems decumbent at the base, white- 

 tomentose, about 3 dm. high, simple; basal leaves cuneate, obovate, about 2 cm. long, 3-5- 



