SOME PLANTS FROM LOWER CALIFORNIA. 291 
dissected leaves and a few showy heads on slender peduncles: 
involueral bracts few, in a single series, obovate-oblong 
acute, and, with the outer series of receptacle-chaff, purple- 
lineolate : rays conspicuous, golden-yellow: ray-achenes 
cuneate-oblong, abruptly ineurved at the apex, the crenulate 
margin involute all around; disk-achenes narrower, straight, 
iheir margin very narrow or obsolete. 
17. DysopIA ANTHEMIDIFOLIA, Benth. Bot. Sulph. 29. 
18. PznrrYnE Frrcnr, Torr. Pac. R. Rep. iv. 100. 
19. CHENACTIS LACERA. A foot high or more, the several 
stoutish branches from an annual root; canescently farinose 
below, the inflorescence viscid: lower leaves 3 or 4 inches 
long, ovate-lanceolate in outline but divided and subdivided 
into linear divaricate or slightly retrorse segments; heads 
large, in a loose terminal corymb: flowers all alike, white : 
achenes clavate-linear, hispidulous, not angled, crowned with 
a thin-hyaline pappus of 8 or 10 lanceolate acute or acuminate 
scales which are sharply and minutely lacerate-toothed or 
fimbriate. 
Of the Acarpheea group, but with a peculiarly skeletonized 
foliage and a very beautiful pappus. 
20. Rarrvesquia Nreo-Mextcana, Gray, Pl. Wright, ii. 103. 
An unexpected habitat for this species. It is very distinct 
from the typical R. Californica. 
91. CRYPTANTHE MARITIMA, Greene, Pittonia, i. 117. 
99. CRYPTANTHE Poxpr. From a few inches to nearly 
a foot high, rather slender, sparingly leafy and setulose, the 
leaves narrowly linear, an inch or two in length: spikes 
terminal in threes or fours on a short common peduncle, 
remotely bracteolate, the bracts hardly surpassing the calyces, 
these crowded, a line long, villous-setose but not at all hispid, 
persistent and open in fruit : corolla rather large : nutlets 4, 
