

CATALOGUE OF SPECIES. 131 



The plant grows about 80 cm. high, and is suffrutescent, like V. dcUoidca and V. dcl- 

 loidea parishii. Its leaves are ovate, with truncate or cordate base, and acuminate 

 apex, entire, canescent with soft appressed hairs above, prominently reticulated, and 

 loosely tomentose beneath, not scabrous in any part. The achenia are silky through- 

 out, and the pappus is composed of two awns and several shorter intermediate lacini- 

 ate scales, as in V. deltoidea. 



The plant was seen in a canon near Lone "Willow Spring; on the northeast slope 

 of Lone Willow Peak; on Browns Peak (No. 183); in the south end of the Funeral 

 Mountains, near Saratoga Springs ; on the north slope of the divide between Resting 

 Springs and Pahrump; and in Johnson and Surprise canons, Panamint Mountains, 

 stations all in the upper part of the Lower Sonoran zone. 



Helianthus annuus L. Sp. PI. ii. 904 (1753). Type locality, "in Peru, Mexico." 

 Dr. Gray says 1 that the type specimens "came not from Peru, nor even from Mexico." 



We first found this plant, the common suuflower, at Corn Creek, Vegas Valley, 

 where its dried stems furnished the only fuel tUfet could be obtained. With them, 

 however, we baked bread and did the other necessary cooking for our party. In 

 Tehachapi Valley, the west end of Antelope Valley, and in the Tulare Plains the 

 Bunflower occurred abundantly, but iu the desert we found it only at the point 

 mentioned above. 



Helianthus petiolaris Nutt. Jouin. Acad. Phil. ii. 115 (1821). Type locality, "on 

 the sandy shores of the Arkansa." 



This smaller sunflower was seen at Resting Springs (No. 273), at Pahrump, and at 

 Ash Meadows (No. 348). 



Encelia eriocephala Gray, Proc. Amer. Acad. viii. 657 (1873). Type locality, 4 

 "interior of California," 



This desert sunflower, iu the Mohave Desert region, was one of the most abun- 

 dant and characteristic annual plants of the Larrea belt. In Death Valley, late 

 in March, it rendered some portions of the mesa yellow with its flowers. Specimens 

 were collected in Furnace Creek Canon (No. 361), and in the valley of the Virgin 

 River (No. 1911). 



Encelia farinosa Torr. in Emory, Rep. 143 (1848) — Gray MS. Typo locality not 

 given. The original specimens were probahly collected in the lower Gila country. 

 The plant was recorded only on the mesa in Death Valley, near Bennett Wells (Now. 

 202, 476), and in Johnson, Surprise, and Hall canons, Panamint Mountains, stations 

 all lying well below the upper limit of the Larrea belt. 



Encelia frutescens Gray, Bot. Mex. Bound. 89 (1859), under Sivisia; Gray, Proc. 

 Amer. Acad. viii. 657 (1873). Type locality, "Agua Caliente, on the Gila," Arizona. 



Our plant is the form with canescent, rather large loaves, the pubescence only 

 slightly scabrous. It appears to be confined to the northern portion of the Upper 

 Sonoran zone, as there are specimens in the National Herbarium from southern Utah, 

 Nevada, and Arizona, as well as the present specimens from the Mohave Desert region. 

 The material and data necessary to define its relation to the more southern form are 

 not at hand. 



This shrub, which was not identifiable in the winter, was recorded, after the be- 

 ginning of its flowering season, in Johnson, Surprise, and Willow Creek canons, 

 Panamint Mountains; in a canon of the Inyo Mountains, near Swansea; near Crystal 

 Spring, Coso Mountains; "between Lone Pine and Olancha; on the east (No. 1020) and 

 west slopes of Walker Pass; and between Cameron and Mohave. 



i Gray, Syn. Fl. i. pt. ii. 272 (1884). 

 'Gray, PL Fendl. 85 (1849). 





