286 LXVII. UMBELLIFER &. Cicvrs 
er. Heads numerous, less than 1’diam. Flowers pale blue or nearly white. 
Ji. Aug. 
5. DISCOPLEURA. DGC. 
G7. dvexos, the disk ; wAevpa, arib; i. e. the disk and ribs (of the fruit) united. 
Calyx teeth subulate, persistent ; petals ovate, entire, with a mi- 
nute, inflexed point ; fruit ovate, often didymous; carpels 5-ribbed, 
the 3 dorsal ribs filiform, subacute, prominent, the 2 lateral united, 
with a thick accessory margin; intervals with single vittze, seeds sub- 
terete.—@® Lvs. much dissected. Umbels compound. Bracts of the wm- 
volucre cleft. Els. white. 
D. capinuacea. DC. (Ammi. Spreng.) Bishop-weed. 
Erect or procumbent; umbels 3—10-rayed; /fts of the invol. 3—5, mostly 3- 
eleft; fr. ovate—In swamps near the coast, Mass.! to Ga. Stem much 
branched, 1—2f high. Leaves very smooth, ternately dissected, with subulate, 
spreading segments. Umbels axillary, pedunculate, spreading. Involucre leaf- 
lets about 3, with setaceous segments. Involucels filiform, longer than the um- 
bellets. Jl—Nov. 
6. BUPLEURU™M. Tourn. 
Gr. Bovs, an ox, tAsvpoy, arib; from the ribbed (veined) leaves of some of the species. 
_ Calyx margin obsolete; petals somewhat orbicular, entire, with a 
broad, closely inflexed point ; fruit laterally compressed ; carpels 5- 
ribbed, lateral ones marginal ; seed teretely convex; flattish on the 
face.—Herbaceous or shrubby. Lvs. mostly sumple. Invol. various. 
Fils. yellow. 
B. RoTuNDIFOLIUM. Modesty. Thorough-wac. 
Las. roundish-ovate, entire, perfoliate; znvol. 0; involucels of 5, ovate, 
mucronate bracts; fr. with very slender ribs, intervals smooth, mostly without 
vittee.—In cultivated grounds and fields, N. Y. and Penn, and [a.! rare. Stem 
1f or more high, branching. Leaves 1—3’ long, } as wide, rounded at base, 
acute at apex, very smooth. Umbels 5—9-rayed. Involucels longer than the 
umbellets. Fruit crowned with the wax-like shining base of the styles (stylo- 
podium), Jl. Aug. 
1 CICUTA, 
A Latin name used by Virgil (Ec. 2d and 5th) but of unknown application. 
Calyx margin of 5, broad segments; petals obcordate, the points 
inflected ; fruit subglobose, didymous; carpels with 5 flattish, equal 
ribs, 2 of them marginal; intervals filled with single vitte, com- 
missure with 2 vitts ; carpophore 2-parted ; seeds terete—% Aquatic 
poisonous herbs. Leaves compound. Stems hollow. Umbels perfect. 
Inwol. few-leaved or 0. Involucels many-leaved. Fs. whate. 
1. C. macuvata. Water Hemlock. Spotted Cowbane. 
St. streaked with purple; lower Ivs. triternate and quinate; wpper biter- 
nate ; segments lanceolate, mucronately serrate; umbels terminal and axillary. 
—Common in wet meadows, U.S. and Can. Stem 3—6f high, smooth, striate, 
jointed, hollow, glaucous, branched above. Petioles dilated at basé into long, 
abrupt, clasping stipules. Leaflets or segments 1—3/ long, }—%’ wide, finely . 
serrate, the veins mostly running to the notches, rarely to the points! Umbels 
rather numerous, naked, 2—4’ broad. Involucels of 5—6 short, narrow, acute 
bracts. Fruit 14 diam., 10-ribbed, crowned with the permanent calyx and 
styles. Jl. Aug.—The thick, fleshy root is a dangerous poison, but sometimes 
used in medicine. 
2. C. sunpirgrA. Bulbiferous Cicuta. Narrow-leaved Hemlock. 
Axils of the branches bulbiferous ; ws. biternately divided ; /fés, linear, with 
remote, divergent teeth ; wmbels terminal and axillary —In wet meadows, Penn. 
