Monography of the North American Cuscutinea. 335 
* Stigmas capitate-—European. 
t Flowers generally pentamerous. 
2. C. Erirnymum, Linn. Seg t 15 Euro 
3. C. Eritinum, Weihe. Flower globose: segments of the calyx and corolla 
orbicular, abruptly acuminate.—Europe.  - 
4. C. pLanirLora, Tenore. Flower campanulate, open.—Italy. 
tt Flowers generally tetramerous. 
5. C. Evrorza, Linn. Lobes of the calyx and corolla obtuse.—Europe. 
** Stigmas capitate.—American. 
A. Corolla cylindric, its remains covering the ripening capsule. Ps 
t Flowers generally pentamerous. ah 
6. C. Caitensts, Ker. Corolla much longer than the campanulate calyx: an- 
thers sessile —Chili. 
7. C. Ceruatantat. Lobes of the calyx and corolla obtuse: anthers with fila- 
Ments.—St. Louis. 
it Flowers generally tetramerous. 
8. C. Cory. Lobes of the calyx and corolla acute.—St. Louis. 
Bo VW Petes 42 ; i he b f tl ipeni 
fth 7 n pee 
1 
t Flowers generally pentamerous. 
9. C. vunervaca. Carinate lobes of the calyx and the lobes of the corolla ob- 
tuse.—Vermont to Georgia and Missouri. 
10. C.Savrurr. Smooth, lobes of the calyx and corolla obtuse.—Western New 
York to Missouri. 
1. C. penracona. Lobes of the 5-angled calyx smooth, roundish ; those of 
the corolla acuminate.—Virginia. 
12. C. verrucosa. Lobes of th p lat ly ; roundish ; those 
of the corolla acuminate —' 
tt Flowers generally tetramerous. 
13. C. Potyconorum. Lobes of the calyx and corolla acute.—St. Louis. 
Il. Lepmancne. Calyx consisting of 10-15 imbricated sepals. 
1. L. Composrrarcm. Western United States. 
(1.) CUSCUTA, Linn. (Dodder.) ee 
Calyx.monosepalous, 4-5-cleft, persistent. Corolla campanu- 
late or urceolate, 4—5-cleft, styles one or two. Capsule 2-celled, 
4-seeded. | 
Twining parasitic plants, bearing the general character of the 
family. The stem is filiform, simple or generally branched, of a 
whitish, yellowish or orange color, with scaly leaves. ‘The in- 
e is a cyme, (with a central flower opening first, and 
axillary or lateral flowers, which open afterwards, ) with whitish 
sessile or pedunculate flowers, more or less clustered (conglome- 
rate) in some, and rather loose (commonly called paniculate) in 
other species. Some bracts are observable on the peduncles and 
pedicels, but they are always easily distinguished from the calyx. 
The first or central flowers of the inflorescence are mostly 
5-parted, but the lateral or secondary ones are in some species 
