580 ^ — $SYNGENÉSIA NÉCESSARIA: 
663. BALTIMORA. Gen. pl. 1333. 
recta, 1. B. scabra; caule dichotomo, foliis oppositis ovatis acti 
minatis serratis petiolatis.— Willd. sp. pl. 3. p. 2329. 
Icon. Pluk, mant. t. 342. f. 3. 
In Maryland near Baltimore. Sp. pl. ©. July. v.v. 
cult, Flowers small, yellow. I have never seen this 
plant in any part of the United States, and suppose it 
to be only an inhabitant of Vera Cruz. * 
664. PARTHENIUM. Gen. fl, 1428. 
integrifolium. 1, P. foliis oblongis inaequaliter dentatis asperis, superiori- 
_ bus amplexicaulibus.— Willd. sp. n 3. p. 2385. 
Icon. Willd. hort. berol. t. 4. ill, elth. t. 225. f. 292. 
Pluk. alm. t. 53. f. 5. t9. t. 219. f. 1. Lam, illustr. 
t. 766. : 
In dry places on the mountains of Virginia and Carolina. 
LN v.v. About a foot high; flowers 
white. 
665. IVA. Gen. pl. 1429. 
ciliata. 1. I. caule herbaceo, foliis lanceolato-ovatis subserratis, spica 
confertiuscula, bracteis lanceolatis acuminatis petiolis- 
que longe ciliatis,— Willd, sp, pl. 3. p. 2386. 
In natural meadows : Kentucky and Illinois. ©. July, 
Aug. v.s. About two feet high. j 
imbricata. 2. I. fruticosa, glabra ; foliis lineari-lanceolatis cuneatis in- 
tegerrrimis glabris, calycibus imbricatis.— Willd. sp. 
pl. 3, p. 2397. Walt. fl. car, 232. 
I. integrifolia. Herb. Banks. mss. : 
- On the sea-coast of Carolina and Georgia. h. v. s. m 
Herb. Walter. 
frutescens. 3.1. fruticosa ; foliis lanceolatis punctato-scabris profunde 
serratis, glomerulis foram depresso-globosis.— Willd. 
sp. pl. 3. p. 2387. 
Icon. Lam. encycl. 766. Pluk. alm. t. 27. f. 1. 
On the sea-coast : New England to Florida. h. Aug: 
Sept. v.v. A shrub about four feet high. 
666. AMBROSIA. Gen.pl.1427. - 
integrifolia, 1. A. foliis ovatis sessilibus acuminatis serratis utrinque his- 
pidis basi ciliatis, racemis terminalibus plerumque tex- 
nis.—J/ ilid. sp. pl. 4. p. 375. 
