StNGENESIA, iEQUALIS. 91 
302. SONCHUS. Gen. pi. 1233. (ttc/iorace^e.) 
Calix imbricated^ ventricose. Receptacle na- 
ked. Pappus pilose, sessile. 
1. S. peduncles sub-squamose; flowers paniculate ; FioiWanus. 
leaves lyrate-runcinate, denticulate, petiolate. — 
Willd. and Pursh. 
Gall of the earth. Blue -flowered Sow-thistle. 
From three to six feet high. Flowers large, blue. Pursh 
says this plant is used like Prenanthes Serpentaria, to cure 
the bite of the rattle-snake. On the bank walk of. the Schuyl- 
kill from Gray’s ferry to Kingsess Gardens. Also on the 
Woodlands, near the Schuylkill; not common. Perennial. 
July, September. 
2. S, peduncles sub-tomentose, umbellate; calices oieraceus. 
glabrous ; leaves oblong-lanceolate, amplexi- 
caule-denticulate, subsinuate, — Willd. 
Icon. FI. Dan. 682. Curt. FI. Dan. 58. 
Yellow -flowered or common Sow4kistle. 
A well-known pestiferous weed to farmers. From three to 
six feet high. Flowers pale-yellow. On the borders of fields 
and the edges of woods, abundant every wdiere. Annual. July, 
September. 
o. S. peduncles squamose ; flowers racemose ; leucophseus. 
leaves runcinate, acuminate ; stem paniculate- 
virgate. — Willd. 
L. spicatus, Lamark. 
About three or four feet high. Flowers small, white ; 
slightly tinged with blue. On the bank walk of the Schuyl- 
kill from Gray’s ferry, to Kingsess Gardens. Biennial. July, 
September. 
4. S. peduncles subsquamose ; flowers paniculate ; acuminatus. 
radical leaves subruncinate ; stem leaves ovate- 
acuminate, petiolate, denticulate in the middle. 
— Willd. and Pursh. 
Lactuca villosa, Jacqu. ? 
Resembles No. 1, very much, but the flowers, which are 
blue, are half the size of them. Grows with No, 1. ; not com- 
mon. Biennial. August, September. 
