ORDER 63.—THE UMBELWORTS. 213 
£, bulbo’sa, A small, early-flowering herb, Western N.Y. to Mo. Stem arises 
from a roundish tuber deepinthe ground. The root leaf is thrice ternate. The 
involuerate leaf twice ternate. The dark-brown stamens with the little white 
petals suggest its common name, 
6. CICU’TA. Water Hemlock. 
Calyx 5-toothed. Petals with the point inflected. Fruit roundish, a 
little contracted on the sides so as to appear somewhat double. Seeds 
with 5, flattish, equal ribs, 2 of them on the margin.—2 Poisonous herbs 
with compound leaves and perfect umbels of white flowers. Involucre 
few-leaved or 1. Involucels many-leaved. 
1 ©. macula’ta. Spotted Water-Hemlock. Stem streaked with purple, 3-6f. high, 
smooth, striate, hollow. Lower leaves triternate and tripinnate, segments lan- 
ceolate, serrate. Umbels 2-4’ broad. Fruit 10-ribbed. Involucels of 5 or 6 
short, slender, acute bracts. Common in wet meadows. July, Aug. 
20. bulbi’fera, Narrow-leaved Water-Hemlock. Stem green, striate, slender, with 
little bulblets in the axils of the branches. Leaves bi-ternately divided. Leaf- 
lets linear or lance-linear, 2-4’ long, with distant teeth. In wet meadows and 
swamps. Aug. 
7. THAS'PIUM. Alexanders. 
Calyx minutely 5-toothed. Fruit elliptical, roundish across, not flat- 
tened either way, seeds each with 5 winged ribs.—2 Leaves divided. 
Involucre none, involucels few-leaved. The species resemble the Zizias 
except in their fruit. May, June. (Figs. 483-6.) 
1 Root leaves simple, cordate, stem leaves once-ternately divided... .2 
1 T. barbino’de. Leaves bi- or tri-ternate, lfts. eut-serrate. St. hairy at joints, 
2 T.au’reum. Golden A. Fruit oval. Flowers yellow. Stem 2-8f. high. 
2 T.atropurpu’reum. Purple A. Fruit roundish. Flowers dark purple. Stem 2-8f. 
high. S. M. 
8. ZIZTA, Alexanders. 
Calyx minutely 5-toothed. Fruit oval or ovate, flattened at the sides 
so as to appear somewhat double. Seeds each with 5 ribs which are not 
winged, but thread-like.—2 Smooth, with divided leaves and yellow 
flowers. Umbels compound, with no involucre or inyolucels. 
Z. integer’/rima. Zntire-leaved A. Root and stein leaves bi- and tri-ternate, leaflets 
entire. Plant 1-2f. high, in rocky woods. May-July. 
