Physospermum.'] xxxviii. umbellifer^e. 
183 
medicinal plant. Stem erect, leafy. Lower leaves bipinnate ; tlie 
pinna; pinnatifid, with broad, wedge-shaped, toothed segments : tlie 
upper leaves gradually more compound, their segments very narrow 
and linear, those of the uppermost leaves nearly setaceous. Fruit 
very curious; each carpel is hemispherical, on its inner and fiat side 
having a projecting margin, which so combines with the opposite one 
as to leave no line or furrow between the two, and they form a com- 
plete little ball or globe, having, however, when quite ripe, 10 ob- 
scure elevated lines or ribs. 
E. Fruit short and turgid , neither prickly nor beaked , somewhat 
laterally compressed. Albumen furrowed or involute at the 
suture. (Gen. 30 — 32 . ) 
30. Conium Linn. Hemlock. (Tab. II. f. 30.) 
Fruit broadly ovate. Carpels with 5 prominent waved or 
crenate ribs, without vittce. Albumen furrowed. Cal.-teetk 
obsolete. Petals obcordate. (Involucre of few leaves ; partial 
of 3 leaves on one side.) — Name : /aovewp, of Theophrastus, from 
Ktai'oc, a cone or a top ; whose whirling motion resembles the 
giddiness produced on the human constitution by the poisonous 
juice of this plant. 
1. C. maculdtum L. ( common IT.) ; stem glabrous spotted, 
leaves tripinnate, leaflets lanceolate pinnatifid with acute and 
often cut segments. E. B. t. 1191. 
Waste places, banks, and under walls, not unfrequent. $ . 6, 7. 
— Root fusiform. Stem 2 — -4 feet high, hollow, striate, and spotted 
with purple, much branched upwards. Leaves large, much divided, 
when bruised extremely fetid, yielding a powerful medicine. It is 
best distinguished from its allies by its spotted stem, fetid smell, and 
by the unilateral partial involucres (which are ovate-lanceolate acumi- 
nate and shorter than the umbels), together with the waved ridges 
of the fruit. 
31. Physospermum Cuss. Bladder-seed. (Tab. III. f. 31.) 
Fruit of 2 ovate-globose lobes or carpels , each with 5 in- 
distinct filiform ribs, and single vittce between them. Albumen 
furrowed. Cal.-teeth evident. Pet ■ obcordate. (Involucre and 
partial involucre of 1 — 5 leaves.) — Named from ipvcrn, a bladder , 
and aictnpa, a seed; from the loose covering to the seed. 
1. P. Cornubiense Hook. ( Cornish B . ). P. aquilegifolium 
Koch. Ligusticum Cornubiense L. : E. B. t. 683. 
Bushy fields, about Bodmin in Cornwall. Wood on the Devon- 
shire side of the Tamar (now extinct). If.. 7, 8. — Stem a foot and 
a half to 2 feet high, erect, striate, glabrous, panicled above. Leaves 
mostly radical, on long stalks, triternate; leaflets wedge-shaped, cut 
