SYNGENESIA NECESSARIA. Silpilium. 
In North America. Ret%, 1/ , v. s. in Herb. Laiii” 
bert. ' 
12. S. caule tereti leevi, foliis subquaterno-verticillatis lan- 
ceolatis scabris subintegerrimis subsessilibiis basi cilia- 
tis^'superioribus sparsis, panicula clichotoma. — Willd, 
sp. pi. 3. p. 2334. 
In Carolina and Georgia. Lyon. %. Aug. Sept. v.v. 
Resembles the preceding j but its purple smooth stem 
distinguishes it at first sight, 
)3. S. caule petiolisque tomentosis, ramis nnifloris, foliis 
alternis cordatis ovatis serratis petiolatis villosis, semi- 
nibus muticis. — Herb. Banks, mss. 
In Georgia, Bartram. , v. s. in Herb. Banks. 
14. S, foliis alternis petiolatis cordatis sinuatis, squamis caly- 
cinis obtusis. Herb. Banks, mss. 
In Carolina. 7/. v. s. in Herb. Banks. 
15. S. foliis alternis ovato-lanceolatis cordatis serratis obtusi- 
uscuiis villosiusculis. Herb. Banks, mss. 
In Florida. %, v. s. in Herb, Banks. 
661. POLYPvlNIA. Gen.pl. 1335. 
1. P. vi.scido-villosa j foliis denticulatis acuminatis, inferio- 
ribus pinnatifidis, superioribus trilobis integrisve. — - 
Willd. sp. pl. 3. p. 2335. 
Icon. Amoen. acad. 3. t. l.f. 5. 
Ib shady mountains: Canada to Virginia. %. June, 
July, V. V. Two or three feet high j flowers yellow j 
the whole plant has a strong balsamic scent. 
2. P, foliis oppositis trilobis acutis in petiolum decurrenti- 
bus, lobis anguloso* sinuatis, radiis elongatis, — Willd. 
sp. pl.3. p. 2335. 
P. maculata. Cav. ic. 3. i. 22J. 
Icon. Pluk. aim. t. 83. f. 3. Moris, hist. 3. s. 6. t. y. 
f. 55. Trew piet, suppi, i J 2. 
In the mountains of Virginia and Carolina. 1/ . July-— 
Sept. V. V. From four to eight feet high, 
662. CHRYSOGONUM. Gen.pl. 1337. 
1. C. pumilum, lanato- villosum j foliis in petiolum angus- 
tatis ovalibus dentatis. — Willd. sp. pl. 3. p. 1337 . 
Icon. Pluk. aim. t. 83./. 4. t. 242. f 3. 
On dry hilis ; Virginia and Carolina. I,/. . May, June. 
V. V. Not above a span high ; flowers j^eilow. 
570 
alropurpu^ >/ 
reum. 
tomentosum. 
elatum. 
reticulatum. 
canadensis. 
Uuedalia. 
virginianum. 
