304 CALTFORNIA ACADEMY OF SCIENCES. 



the stigma 2 mm. from the tip; pappus almost equalling 

 the corolla; seed mottled with brown, polished, flattened. 

 This beautiful Cnicus differs from Lemmon's 2794, col- 

 lected in the Huachuca Mts., Arizona, which is named C. 

 Rothrockii. Its bushy habit, leaves more decurrent with 

 fewer and broader divisions, and heads longer and more 

 slender at the ends of leafy branchlets, give it such a dif- 

 ferent appearance that I hesitated about making it a 

 variety. It grew in the dry sandy washes at the heads of 

 the deep canons that formed the numerous laterals of the 

 San Juan Canon. The head of Willow Creek is the 

 type locality, and there it was most luxuriant owing to the 

 greater amount of water that is generally present, coming 

 from the finest spring in that arid region. 



66. Stephanomeria pentachseta Eaton, Bot. King's 

 Exped., 199, t. xx, figs. 8-10. 



Type localities: " Truckee and Humboldt Valleys." 

 Collected along the San Juan River below McElmo 

 Creek. 



67. Lygodesmia exigua Gray, Proc. Am. Acad., ix, 

 217. 



Described as Prenanthes ? exigua. PI. Wright., ii, 105. 

 Type locality: " Stony hills above El Paso." 

 Collected in fruit on stony hills of Barton's Range. 



68. Primula farinosa L., Spec. PL, i, 143. 



Type localities: "In the frigid Alps and swampy 

 meadows of Europe." 



This does not agree with the description of P. incana 

 Jones, Proc. Cal. Acad. Sci. v, 706, nor does it agree 

 exactly with other forms of the same species. The 

 leaves are oblanceolate, longest 10 cm., irregularly or 

 doubly dentate, slightly farinose beneath; the rays of the 

 umbel are of different lengths, from 5-20 mm.; scapes 



