138 
BOTANY. 
A pappus-bristle ; enlarged eiglit diameters. Fig. 5. The style. Fig. 6. An 
anther ; both enlarged four diameters. (493.) 
Brickellia mickophylla, Gray. Viscidly pubescent and glandular ; 
stems 12-18' high, much branched from a woody base ; leaves alternate, short- 
petioled, ovate, coarsely toothed, 4-7" long, those of the branchlets much 
smaller and sessile; heads small, 15-20-flowered, clustered at the ends of the 
branchlets ; involucral scales imbricated in many rows, outer ones ovate, her- 
baceous, with squarrose tips, inner ones erect, lanceolate, acute ; pappus 
scabrous; achenia slightly setulose. — Oregon, on the Walla- Walla, NuttalL 
East Humboldt Mountains, Nevada, and mouth "of American Fork Canon, 
Utah ; on rocks at about 6,000 feet elevation ; July, August. (494.) 
Brickellia Californica, Gray. Scurfy-puberulent ; stems numerous 
from a woody base, li° high, branching ; leaves 9-20" long, thickish, alter- 
nate, petiolcd, deltoid-ovate or subcordate, acutish, dentate, obscurely 3-nerved 
from the base, the under surface reticulated ; heads medium-sized, nearly 
sessile in short axillary racemes, 10-12-flowered, (about 20-flowered, T. S)- G. ;) 
involucral scales imbricated, obtuse, the outer ones appressed, very short, 
inner ones erect, elongated ; achenia minute, finely pubescent, obscurely stri- 
ate ; pappus scabrous. — B. tenera and, perhaps, some other New Mexican 
forms will probably be reduced to this species. The appressed scales and 
larger leaves easily distinguish it from the last. Cahfornia to New Mexico. 
Robert's Station, Nevada; City of Eocks, Southern Idaho, and mouth of 
American Fork Canon, Utah; 5-G,000 feet elevation; July-October. All 
but the Idaho specimens are immature. (495.) 
Brickellia grandifloka, Nutt. Stem 2-2^° high, rather stout ; leaves 
ojiposite or alternate, long-petioled, cordate-triangular, about 2' long, acumi- 
nate, coarsely serrate, glabrous or slightly pubescent, often resinous-dotted 
beneath ; heads middle-sized to very large, shoi-t-peduncled, clustered at the 
ends of the paniclcd or sometimes corymbose branches, about 30-flowered ; 
involucral scales much imbricated, outer scales herbaceous, ovate with long 
subulate spreading tips, inner ones elhptical, acute, with scarious margins ; 
achenia sparingly setulose toward the summit. — Colorado and New Mexico to 
Oregon and Cahfornia. East Humboldt Mountains and i)i the Wahsatch ; 
6-8,000 feet elevation ; August. (496.) 
Brickellia atractyloides, G ray. Proc. Amer. Acad. 8. 200. Shrubby, 
much branched, scarcely 1° high; branchlets leafy, puberulent, monoceph- 
