Heracleum.'] xxxvm. umbellifer.e. 
181 
2. P. palustre Mccneh ( Marsh H., or Milk- Parsley) ; milky, 
leaves ternately decompound, leaflets opposite pinnatifid, seg- 
ments linear-lanceolate with a hard point, rays of the umbel 
rough, involucres of many persistent lanceolate leaves, calyx 
5-toothed, fruit with a narrow margin. Selinum L. : E. B. 
t. 229. 
Marshy and boggy places, but apparently very local. Yorkshire 
and Lancashire ; about Norwich and the Isle of Ely ; Burwell Fen, 
Cambridgeshire. Ardincaple on the Clyde. If.. 7 — 8. — Stem fur- 
rowed, 4 — 5 feet high, with very compound leaves, abounding in a 
milky juice, which dries to a brown resin. Flowers white. 
3. P. *Ostruthium Koch (broacl-leaved H., or Blaster- Wort) ; 
leaves biternate, leaflets broadly ovate lobed inciso-serrate 
unequal at the base, sheaths very large, universal involucre 
none, calyx-teeth obsolete, fruit with a very broad margin. 
Iniperatoria L. : E. B. t. 1380. 
Moist pastures in the north of England, and in various parts of 
Scotland ; the plant was formerly much cultivated as a potherb. If.. 
6. — Flowers white. Partial involucres several, subulate. 
26. Pastinaca Linn. Parsnep. (Tab. II. f. 26.) 
Fruit flat, with a broad border. Carpels with 3 dorsal and 
2 distant marginal ribs on the border, with single filiform vittce, 
the length of the fruit, in the interstices. Cal.-teeth nearly 
obsolete. Pet. roundish, entire, involute, with a sharp point. 
(Involucres 0 or of few leaves.) — Differs from Heracleum in 
the entire involute petals, and filiform, not clubbed, vittae. 
— Name derived from pastus, food. 
1. P. saliva L. ( common wild P.) ; stem furrowed, leaves 
pinnate downy beneath, leaflets ovate cut and serrate, ultimate 
one 3-lobed, involucres none, fruit oval. E. B. t. 556. 
Borders of fields and pastures in a chalky or gravelly soil. About 
Cambridge; Crosby near Liverpool ; abundant in Hants and Essex. 
$. 7, 8. — Root fusiform; the origin of our garden parsnep. 
Leaves generally shining. Petals very convex, involute, yellow. 
27. Heracleum Linn. Cow-Parsnep. (Tab. II. f. 27.) 
Fruit flat, with a broad border. Carpels with 3 dorsal ribs 
and 2 distant marginal ones, and rather short club-shaped vittae 
in the interstices. .Pet. obcordate, point inflected ; outer ones 
radiant. (Involucre deciduous ; partial of many leaves.) — 
Named from Hercules, who is said to have brought.this or some 
allied plant into use. 
1. II. Sphondfjlium L. {common C., or Hog-weed) ; leaves pin- 
nate rough hairy, leaflets pinnatifid cut sinuate, ultimate one 
