PENTANDRIA, DIGYNIA. 139 
Bishop'^ s-weed. 
From a foot to fourteen indies high. Flowers white. Along 
the shores of the Delaware where the tide reaches, not imfre- 
quenh Annual. June, July. 
133. CONIUM. Gen. pi. 469. CUmbeniferaJ 
Calix entire. Petals unequal, cordately in- 
flected. Fruit ovate, gibbous. Seeds 5- 
ribbed, ribs at first crenate ; intervals flat. 
Involucell on one side, mostly 3-leaved. — 
JVutt. 
1. C. seeds striate. WUld. maenlatom. 
Icon. Jacq. austr. 156. (Pursh.) 
Hemlock. Cictita. 
A well known narcotic medicinal plant, yielding the Cicuta 
ofthepharmacopaeias. Introduced, and sometimes, though rarely 
found in this neighbourhood, with the appearance of growing 
wild. Whole plant poisonous. Biennial. June. 
134. HERACLEUM. Gen. pi. 477. CUmbellifirce.J 
Calix nearly entire. Petals emarginately 
inflected, often of 2 forms. Fruit elliptic, 
dorsally compressed, flat, apex, emargi- 
nate, margin membranaceous'. Seed with 
3 striae, intervals maculate half way 
down, — commissure flat, bimaculate.” — 
Sprengel. — Involucrum none. — JSTutt. 
1. H. petioles and nerves of the leaves very vil- lanatuw. 
lous on the under side j leaves trifoliate, folioles 
all petiolate, large subrotund-cordate, subpal- 
mate-lobate, seeds orbicular. — Mich. 
Cow Parsnip. 
Perhaps the largest umbelliferous plant native of the United 
States, being often six or seven feet high. The umbels and 
