580 
SYNGENESIA NSCESSARIA. 
recta. 
integrifoUum. 
ciliata. 
imhricata. 
fmtescens. 
integrifoiia. 
663. BALTIMORA. Gen.pl 1333. 
1. B. scabra ^ caule dichotomo, folHs oppositis ovatis aci3‘^ 
mlnatis serratis petiolatis. — IVii/d. sp. pi. 3. p. 2329- 
Icon. Pluk. mant. t. 342, f 3. 
In Maryland near Baltimore. Sp.pl. 0. 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.pl. 1428. 
1 . P. foliis oblongis inaequaliter dentatis asperis, superior!* 
bus amplexicaulibus. — Willd. sp. pi. 3. p. 2385, 
Icon. Tf^illd. hort. heroL t. 4. Dill. elth. t. 225. f. 2Q2. 
Pluk. aim. t. 53. f. 5. 0* t. 219. f. 1. Lam. illustr. 
t. 766. 
In dry places on the mountains of Virginia and Carolina. 
1/ . Sept. Oct. V. V. About a foot high 3 flowers 
w'hite. 
665. IVA. Gen. pi. I42g. 
1 . 1, caule herbaceo, foliis lanceolato-ovatis subserratis, spica 
confertiuscula, bracteis lanceolatis acuminatis petiolis- 
que longe ciliatis. — Willd. sp. pi. 3. p. 2386. 
In natural meadows : Kentucky and Illinois. 0. July, 
Aug. V. s. About two feet high. 
2. I. fruticosa, glabra 3 foliis lineari-lanceolatis cuneatis in- 
tegerrrimis glabris, calycibus imbricatis. — Willd. sp. 
pL 3. p. 2387. Walt.fl. car. 232. 
I. integrifoiia. Herl. Banks, mss. 
On the sea- coast of Carolina and Georgia. Tj . v. s. in 
Herl. Walter. 
3. 1. fruticosa 3 foliis lanceolatis punctato-scabris profunde 
serratis, glomerulis florum depresso-globpsis.-— 
sp. pi 3. p. 2387. 
Icon. Lam. encycl 766. Plul. aim. t. 2J.f. 1 , 
On the sea-coast : New England to Florida. , Aug. 
Sept. V. V. A shrub about four feet high. 
666. AMBROSIA. Gen.pl 1427. 
1. A. foliis ovatis sessilibus acuminatis serratis utrinque his- 
pidis basi ciliatis, racemis terminalibus plerumque ter- 
ms.—Wii/d. sp. pi. 4. p. 375. 
