90 
rubicunda. 
elongatae 
SYNGENESIA, AQUALIS. 
Lion’s-foot. Dr. Witt’s Snake-root. 
Seldom exceeding two feet and a half in height, and not 
unfrequently flowering much under this size. 1 cannot think, 
as Mr. Nuttall has intimated, that this plant is scarcely more 
than a variety of P. alba, for I have met with hundreds of spe- 
cimens of it in a pedestrian journey through Maryland, con- 
stantly presenting the same aspect and characters, and found it 
in company with P. alba, which latter is always a much larger 
plant, frequently attaining a height of six feet. On the border 
of woods about 9 or 10 miles south-west of Philadelphia, not 
far from the Chester-road. Very rare in this vicinity. Stem and 
flowers dingy-purple and yellow. Possesses medicinal virtues. 
(Pursh.) Perennial. September. 
4. P. leaves ciliate, radical, hastate-angular, sub- 
entire; lower ones obovate, attenuate at the 
base, subangular; the upper ones lanceolate, 
very entire; raceme simple, flowers nutant.— . 
Willd. and Pursh. 
P. alba, 4. Sp. Pl. 1122. 
P. autumnalis, Gron. Fl. Virg. p. 89. 
About fifteen or eighteen inches high. On the edge of the 
woods near the Lancaster turnpike-road, 9 or 10 miles from 
Philadelphia, frequent. Perennial. August, September. 
301. LACTUCA. Gen. pl. 1234. ( Cichoracee.) 
Calix imbricated, cylindric, margin (of the 
segments) membranaceous. Aeceptacle na- 
ked. Pappus simple, stipitate. Seed even. 
—Nutt. 
1. L. leaves smooth beneath, lowest ones runcinate, 
very entire, amplexicaule ; lower ones dentate, 
upper ones lanceolate ; flowers corymbose-pani- 
culate. — Willd. enum. 
L. longifolia, Mich. 
Long-leaved Wild-tettuce. Fire-weed. 
From three to six feet high. Flowers small, yellowish. On 
the borders of fields, in woods, and on road-sides, very com- 
mon. Biennial. August, September. 


