PTOpj 



134 BOTANY OF THE DEATH VALLEY EXPEDITION. 



Seen only at Winters's ranch, Palirump Valley (No. 292), and in the Vegas Valley, 

 between Cottonwood Springs and Vegas Ranch. 



Hulsea algida Gray, Proc. Araer. Acad. vi. 547 (1865). Typo locality, "high 

 peaks of the Sierra Nevada, on Mount Dana, at 11,500 feet, and Wood's Peak-, 10,500 

 feet." 



Above timber-lino in tbe Sierra Nevada (Nos. 1660, 2058). 



Chaenactis attenuata Gray, Proc. Amer. Acad. x. 73 (1874). Type locality, 

 "Ehrenuerg, Arizona." 



This plant has not been reported since its original discovery, and unfortunately the 

 only specimens that I could collect were dead winter plants of the preceding year's 

 growth. These plants retained their involncral bracts and a few achenia and leaves, 

 and upon these the identification is made. The characters of very short obtuse pap- 

 pus scales, few roceptacular bristles, and fewer-dowered heads, as well as narrower 

 involncral bracts, distinguish this species nicely from C. earphoclinia. It was con- 

 founded in the field with that species, and, although supposed to be abundant in 

 Death Valley, the plant observed so frequently there may have been C. earphoclinia. 

 The specimens collected were from tho mesa near Bennett Wells (No. 201). 



Chaenactis brachypappa Gray, Proc. Amor. Acad. vin. 390 (1873). Type lo- 

 cality, "in the Pahranagat Mountains, Nevada." 

 Johnson Canon, Panamiut Mountains (No. 532). 



Chaenactis earphoclinia Gray, Bot. Mex. Bound. 94 (1859). Type locality, 

 "Gila and Colorado desert." 



This is a Lower Sonoran species collected in the Vegas Wash (No. 411) ; in Surprise 

 Canon, Pananunt Mountains (No. 702); near Keeler (No. 865); and in the valley of 

 the Virgen, near St. Thomas, Utah (No. 1920). It is undoubtedly abundant through- 

 out these parts of the desert. 



Cnaenactis douglasii (Hook.) PI. Bor. Amer. i. 316 (1834), under Rymenopappus; 

 Hook. & Arn. Bot. Beech. 354 (1840-41). Type locality, "on the barren dry sandy 

 grounds of the Columbia, from the 'Great Falls' to tho Rocky Mountains." 



At Soda Springs, on the North Fork of Kern River (No. 1599). 



Chaenactis macrantha Eaton, Bot. King Surv. 171 (1871). Type locality, "foot- 

 hills of Western Nevada, 5,000 to 5,500 feet elevation." 

 Between Darwin ;md Keeler (No. 948). 



Chaenactis santolinoides Gray, Syn. Fl. i. pt. ii. 341 (1884)— Greene in herb. 

 Type locality, "San Bernardino Mountains, above Bear Valley, S. E. California." 

 Frazior Mountain (No. 1207). 



Chaenactis stevioides Hook. & Arn. Bot. Beech. 353 (1840-41). Type locality, 

 "Snake Country." 

 Near Lone Pine (No. 892). 



Chaenactis xantiana Gray, Proc. Amer. Acad. vi. 545 (1865). Type locality, 

 "near Fort Tejon," California. 

 Near Crystal Spring, Coso Mountains (No. 921). 



Orocheenactis thysanocarpha 1 (Gray) Proc. Amer. Acad. xix. 30 (1884), under 

 Chaenactis. Typo locality, "southern part of the Sierra Nevada, California, proba- 

 bly in Kern County, at 9,800 feet." Plate X. 



1 Orochaenactis gen. nov. 



Plaitt of the order Composite, annual, slender-branched from the base; leaves 

 narrowly linear, entire, alternate or the lowest opposite; anthodia in gloniernlcs 

 terminating the branches, discoid; involucre of about 4 equal, herbaceous, dis- 



