with 2 conspicuous vittæ.—The two varieties of this plant are generally considered
as distinct species, and have even been referred to different genera
by many botanists ; but a careful examination has convinced us that they
scarcely differ except in the color of the flowers. The specific name of
Linnæus is so inapplicable that we have thought it inexpedient to substitute
it for the very appropriate one given by Walter, which has been generally
employed.
_ 2. T. aureum (Nutt.) : stem glabrous at the nodes ; leaves all biternately
divided ; segments oblong-lanceolate, cuneate at the base, dentate-serrate ;
the margin of the serratures cartilaginous ; carpels with the winged ribs nearly
equal.—Nutt. gen. 1. p. 196, (excl. syn. ?)
Pennsylvania? Springfield, Ohio, Mr. T. G. Lea!—Plant apparently
3-4 feet high, glabrous. Stem branching, finely sulcate. Cauline leaves on
short petioles; the segments somewhat rhombic-lanceolate, 2-24 inches
long; the lateral ones sessile; the terminal one on a long petiolule, Principal
umbel of about 10 rays ; the rays an inch or more in length. Involucel
of 2-3 short setaceous leaflets, or none. Fruit about 14 line long : all the
ribs conspicuously winged.—This species agrées minutely with the description
pf Nuttall’s T. aureum (the locality of which is not given), and moreover
appears to be a genuine Thaspium. It is probably rare, as we have
only received it from a single locality.
3. T. barlinode (Nutt.): stem pubescent at the nodes; leaves 2-3-ter-
nately compound ; segments cuneate-ovate, unequally and incisely serrate,
entire at the base; fruit elliptical or ovate; the 3 dorsal wings usually alternately
narrower.—Nutt.! gen. 1. p. 196-,• DC.! prodr., 4. p. 154; Dar-
lingt.fl. Cest. p. 192. Ligusticum barbinode, Michx, ! ft. 1. p. 167 ; Pursh,
f t \ .p . 193. Thapsia trifoliata, {MUI. ?) Spreng. in Schuit, syst. 6. p. 615 ;
Torr. f t 1. p. 317. Apii species fl. luteis, Gronov. ! Virg. ed. 1.
/?. leaflets small; fruit narrowly and equally winged.
Banks of rivers, Chippewa, Upper Canada ! to Georgia! Kentucky!
and Arkansas ! Florida, Dr. Chapman ! June.—Plant yellowish-green.
Stem about 2 feet high, branching above; the nodes and base of the
petioles usually more pubescent. Leaves mostly biternately divided ; the
upper ones usually opposite : segments 1-2 inches long, (in f t about half an
inch) ; the base, particularly of the terminal one, moré or less cuneate, but
sometimes obtuse. Umbels terminal (alar) as well as opposite the upper
leaves, on peduncles 1-3 inches long : rays half an inch in length. Involucre
usually wanting, but sometimes of 1-2 linear leaflets : involiicels 3-4-leaved.
Flowers deep yellow. Styles nearly erect, as long as the ovary. Fruit 2-3
lines long : one of the carpels usually with only the dorsal and the marginal
ribs strongly winged ; the other with the two intermediate and thé marginal
ribs winged : sometimes, however, all the ribs are equally winged, 18
18. OENANTHE. Linn, (partly) ; Lam. ill. t. 203 ; DC. prodr. 4. p. 136.
OEnanthe & Phellandrium, Linn.
Calyx-teeth lanceolate. Petals obcordate, with an inflexed point. Fruit
cylindrical-ovate, crowned with the straight styles. Carpels more or less
corky, with 5 convex obtuse ribs; the lateral ones marginal and broader. Intervals
with single vittæ. Carpophore indistinct.—Glabrous herbs. Involucre
various, often none. Involucels many-leaved. Flowers white ; those of the
circumference sterile and on long pedicels ; the central ones sessile or nearly
so, and fertile.
1. CE. sarmentosd (Nutt.! mss.): “ root fibrous; stem weak, stoloniferöus;
leaves bipinnately divided; segments ovate, acute; incisely serrate; the
lower and terminal ones often 3-cleft; umbels terminal, and opposite the
leaves, many-rayed; involucre none or few-leaved; fruit cylindrical-oblong;
styles long and somewhat diverging.—Phellandrium aquaticum,
Pursh, f t 1. p . 195 ?j excl. syn.
“ Ponds and inundated places, Oregon, abundant.—The stalks when young
are eaten raw by the Indians, and have a good deal the taste of Celery."
Nuttall.—Fruit about 2 lines long, somewhat corky. Commissure with 2
Vittas. Styles nearly as long as the carpels. Stylopodium small, conical.
19. CYNOSCIADlUM. D C . mém. Umh. p-. 44, t. 11, Sp prodr. 4. p . 160,
Calyx-teeth subulate, persistent. Petals ovate or nearly orbicular, entire,
with a short inflexed point. , Stylopodium conical. Styles very short, recurved.
Fruit ovate. Carpels with 5 thick obtuse ribs, of which the lateral
ones are united with a thick corky accessory border. Intervals with single
vittas. Commissure with 2 vittse. Seed teretely convex on the back, rather
flat on the face. Garpophore free, 2-parted.—Glabrous (North American)
annuals, with angular stems. Cauline leaves pinnately or palmately divided
; the segments linear or linear-lanceolate: radical leaves undivided.
Involucre and involucels few-leaved. Flowers white.
1. C. digilatum (D C .): lower leaves digitately 5-parted; upper ones
3-parted; petals ovate, with an inflexed point; fruit contracted into a neck
near the summit; dorsal ribs very prominent.—D C . ! mem. 1. c. t. 11, ƒ. A ,
Up prodr. 4.y>.141.
Borders of ponds, and wet prairies, Arkansas, N u tta ll! Louisiana, D r.
H a le ! Prof. Carpenter! Texas, D r . Leavenworth! May-June.—Stem
1-2 feet high, slender, somewhat branching above. Radical leaves often
entire, and narrowly lanceolate. Umbels 6-10-rayed. Involucre of 5-6
linear leaflets. Fruit about 24 lines long; the accessory margin very conspicuous.
Intervals deep and narrow.
2. C. pinnatum (DC.): leaves pinnately divided; segments 2-3 pairs,
distant; the terminal One very long; petals nearly orbicular, obtuse; fruit
ovate-oblong; the ribs slightly elevated__DC. ! 1. c. t. 11, f. B, &■ prodr,
4 .p. 141. ...' " ;
Wet prairies, Arkansas, N u tta ll! D r . Pitcher! D r . Leavenworth ! Texas,
Drummond!—Radical leaves often entire, or With 1-2 small pairs of segments.
Flowers larger than in the preceding species. Fruit not attenuated
at the summit; the ribs convex, with shallow intervals.
20. iETHUSA. L in n .; Koch, lim b .p . I l l ; D C . prodr. 4. p . 141.
Calyx-teeth obsolete. Petals öbovatè, emarginate, with an inflexed point.
Fruit ovate-globose. Carpels with 5 acutely carinated ribs ; the lateral ones
marginal and a little broader. Intervals deeply acute-angled, with single
vittae. Commissure with 2 vittas. Seed teretely-convex on the back, rather
flat on the face. Carpophore 2-parted.—Annual erect poisonous herbs.
Leaves many-cleft. Involucre none, or 1-leaved. Involucels 1-3-5-leaved,
lateral, spreading or pendulous. Flowers white.
78