550 PROCEEDINGS OF THE AMERICAN ACADEMY 



cola ; caule simplici e rhizorante gracili repente foliisque oppositis 

 tomento tenui argentatis ; capitulo specioso ; floribus aureis. 



WiiiTXEYA DEALBATA. — J)ry woods on the Yosemite trail, alt. 

 7,000 feet. Stem simple, a foot high, naked above, and bearing a 

 single head, or with an additional monocephalous peduncle from the 

 axil of the uppermost leaves. Leaves entire, mucronate ; the radical 

 or subradical ones obovate or oval, 3 - 5-nerved at the base, tapering 

 into a flat or winged petiole ; the cauline usually a single pair, smaller 

 and narrower, sessile, and sometimes connate. Rarely there are two 

 alternate bracts. Lateral peduncles, when they occur, usually bibracte- 

 ate. Involucre half an inch long, equalling the disk, tomentulose. 

 Tube of the corolla glandular-pubescent. Ligulesover an inch long, 

 lanceolate-oblong, 7 - 9-nerved, minutely three-toothed at the apex. 

 Branches of the style in the di^^k-tlowers tapering into a bluntish hairy 

 apex, but not tipped with any distinct cone or appendage. Achenia 

 hirsute-pubescent ; those of the ray flat, 3-nerved on the inner face, and 

 obscurely so on the outer face ; those of the disk appai-cntly similar 

 and fertile, but immature in the three specimens collected. — This 

 handsome Composita, doubtless belonging either to the Senecionece or 

 Heleniece (although destitute of pappus), is dedicated to the eminent 

 Geologist in charge of the Californian State Survey, Professor Josiah 

 D. Whitney, under whose superintendence a most interesting and ex- 

 tensive collection of dried plants of California, especially of the high 

 sierras, has been made. 



RAILLARDIA, Gaudichaud, § Raillaudella. 



Achenia magis compressa. Pappus niveus. Styli rami appendice 

 tenuiori superati. Receptaculum planum seu convexum. — Herbae 

 acaules, pumilte, regionum alpinarum Calilbrniie montiura incolae, rhizo- 

 matibus subterraneis repentibus apice folia rosulata lanceolata subuni- 

 nervia scapumque gracilem monocephalum proferentibus. 



R\ri,LAUDiA (Raillardella) argentea: foliis spathulato-lanceo- 

 latis utrinque argenteo-sei'iceis ; involucro cylindrico 7-15-floro cum 

 scapo nudo glanduloso, squarais longe ultra medium coalitis ; recep- 

 taculo piano glabro. — Sonora Pass, 8,000- 10,000 feet, and Ebbett's 

 Pass, at about the same altitude, on dry slopes. — Leaves one or two 

 inches long, tapering into a short petiole, subcoriaceous ; the silvery- 

 bilky pubescence perhaps somewhat deciduous with age. Scape 1 ^ to 



