S¥NGENESIA. SUPERELUA, _ 163 
561. * BRACHYRIS. + 
Calia cylindric-ovate, closely imbricate, scales 
agglutinated. Radial florets about 5; discal 
i florets also 5. Receptacle naked. Pappus short 
7 _ and paleaceous, leafiets 5 to 8, persistent. 
; Vegetation almest exactly similar to that of Euthamia 
tenutfolia. ; 
B. Euthamie. Solidago Sarothre. Pu. 2. p. 540. 
Oss. Perennial. Stems numerous, marginately angular 
and scabrous, 6 to 12 inches high, fastigiately branched 
and corymbose. Leaves proximate, narrow linear, entire, 
punctate, and scabrous on the margin; branchlets dicho- 
tomous. Flowers terminal, often glomerated by 3s, smail,. 
and yellow. Scales of the calix subcarinate, partly acute, 
with greenish foliaceous points, resinosely giutinous- Rays 
4, entire, nearly as long as the calix. Dhiscal florets the 
same number, tubular, 5-toothed. ed somewhat in- 
versely conic, pubescent; pappus palédceous, about the 
length of the seed, 5 to 8-parted, leaflets unequal, linear 
_ and subacute. Has. On the arid hills of the Missouri, 
from the Arikarees to the Mountains? The whole plant 
possesses a strong balsamic but disagreeable scent, and 
is used medicinally by the aborigines, operating power- 
fully as a diuretic. Z 
562. DONIA. R. Brown. 
Calix hemispherical, imbricated, squarrose 
and glutinous. dial florets numerous, (30 to 
35, yellow): Receptacle naked, scrobiculate. 
Pappus setaceous, setz 3 or 4, deciduous, some- 
what paleaceous. Be 
Suffruticose, or biennial; leaves serrated, resinosely 
Mretate; flowers terminal, fastigiate. Seeds obovate, 
- Specres. 1. D. squarrosa. Pu. Oss. Bien * sut- 
fruticose. Stem 3 or 4 feet high, t°or spreading, 
white or purplish; branches fastigiate, few-flowered, ra- 
muli 1-flowered. Radical leaves spathulate-obovate, ob- 
tuse, stem leaves oblong, acute, serrate, amplexicaule, 
smooth and reticulately veined, glandularly punctate. 
ee AP eee 
“fFrom B¢#%25) short, and @%¥g07, a chagfy scale; the pap- 
= 
5° 
ae 
