. SUPERFLUA. > SBS 
584, HELENIUM. L. (American Sneezewort.) 
Calix simple, many parted. Rays of the flower 
semitrifid. Receptacle naked, globose; the rays 
only paleaceous, Seed villous; pappus palea- 
—ceous, about 5-leaved, leaflets awned. 
Herbaceous; leaves alternate, decurrent; flowers ter- 
minal, pedunculate, subcorymbose.—Discal fiorets 4 and 
5-toothed, externally viscid and glandular; anthers bise- 
tose, or bifid at the base as in J Faiflas ; it appears, however, 
both by external and sensible properties more nearly allied 
to Galardia. 3 
Species. 1.H. autumnale. Very common. Flowers 
large and bright yellow; the whole plant is intensely bit- 
ter, with something of the aroma of Anthemis nobilis, and 
would probably answer all its medicinal properties. 2. ca- 
zatonlgrete +. 3. quadridentatum. v. v. Near New Or- 
Ss : 
A North American genus, indigenous to river marshes. 
585. ACTINELLA. Jussieu. 
_ Calix many-leaved, subequal, flat. Ray ys (8 
to 20), 3-toothed, wider towards the extremity. 
Fieceptacle naked, hemispherical. Pappus pa- 
_ leaceous, 5 to 8-leaved, leaflets awned. 
Stemless or caulescent and suffruticose; leaves entire, 
alternate; scape or terminal peduncle elongated, naked, 
1-flowered.—Flower concolor (yellow.) Diskal florets very 
short, viscidly glandular? tube minute; anthers entire at 
the base; seeds villous. Nearly allied to Galardia, but the 
rays are distinctly styliferous, and the receptacle naked. 
Species. 1. A. acaulis. Scape naked, , 
to 12 inches lo  Telaee of the cals oblong: . 
subequal, i irre rs about 2 series, densely =e 
