_ AND GENERA OF PLANTS. 997 
Lepidanthus suaveolens. 
Has. In Oregon. Generally in open wastes, or by the banks of streams. Santolina suaveolens, 
Porsun, Vol. II., p. 520. Decanp, Prod. Vol. VI., p. 37. Tanacetum matricarioides, Less. 
Syn. Gen. Compos. Artemisia matricarioides, Luss. in Linnea, Vol. VI., p- 240. Tanacetum? 
suaveolens, Hoox. Flor. Bor. Am., Vol. I. »p. 327. Pyrethrum breviradiatum, (Herb. Schweinitz, 
from LapEsous,) from Unalashka, where it was also collected by Cuamisso. These specimens 
are apparently depauperated with very few sessile flowers.—For several years it came up as a 
weed in the garden of the late Mr. M‘Mahon, near fre ape it was raised from seeds 
brought by Captain Lewis. 
Division v.—ARTEMISIEEZ. (Lessing, Decand.) 
ARTEMISIA. (Linn.) 
Section Bi: DracuncvLus. 
Mic ana, (BESsER.) oA. cernua, New Gen. Am., Vol. IL, p. 
148, (1818.) A. Dracuntulss, Pursu, Vol. IL., p. 521. A. Dracunculoides, Em. 
in Suppl., Vol. IT., p. 742. 
Has. Common in the open prairies, from the immediate vicinity of St. Louis to the Rocky ~ 
Mountains. id 
Section u. Seripuipium. (Bess.) Receptacle naked; capitulum homogamous. 
Artemisia * Plattensis; h; | 
filiform-linear, revolute on the 1 margin, simple and trifid towards the summit; 
capituli very small, tomentose, ovate, nodding and pedicellate, disposed in a 
loose and regularly simple-branched panicle. 
Has. Upper plains of the Platte, and nearly to the Kansa agency. A whitish silky leaved 
shrub, three or four feet high, much branched, the branches slender and virgate. Flowers very 
small. Sepals ovate, unequal, none of them seariose. The scent similar to that of 4. Abrotanum, 
eaves softly and sericeously villous, cinereous, 
nearly allied to 4. filifolia of Torrey, but the flowers are loosely paniculate. 
Artemisia * folosa; »; leaves covered with a very short, dense tomentum, 
green or canescent, filiform-linear, revolute on the margin, simple and trifid 
towards the summit; axills leafy; capituli roundish, tomentose, sessile, clus- 
tered in a narrow panicle with an angular rachis; scales oval or round, the 
inner scariose. s 
Haz. Common round Monterrey, in Upper California. Nearly allied to the last, but distinct in its 
inflorescence. Leaves about one and a half inches long, the undivided part resembling a petiole, 
vil.—4 Z 
