NORTH AMERICAN CUSCUTINES. 191 
ing only of one or a few teeth on both sides of the filament 
(asin €. Coryli,) but commonly forming a distinct lamina. 
In some, they are bifid, in others undivided ; but in all either 
crenulate or fimbriate, or laciniately or pinnatifidly divided ; 
they are erect and appressed to the tube in some species; in 
others, convergent, closing the tube and including the 
ovary. 
Ovary always 2-celled, 4-ovulate; styles 2 (in a single spe- 
cies united into one), frequently unequalin length; in a few 
_ Gases supported by a stylopodium. Stigma either filiform 
(in the European), or capitate (in the American Cuscute.) 
Capsule globose or depressed, crowned by the persistent 
Styles and stylopodium (where the latter exists), 2-celled, 
Sometimes 4-seeded, but oftener by abortion 3-2, and even 
l-seeded. In the European kinds, it separates by circumscission 
from its base, leaving the dissepiment persistent on the 
calyx ; in the American, the capsule does not appear to open 
regularly, but separates easily from the calyx when ripe. 
= L C. Cephalanthi (n. sp.); stem high branching, flowers 
subpedunculate mostly 5-partite, tube of the corolla cylindri- 
cal (after flowering ventricose) twice the length of the obtuse 
‘Stamens shorter than the limb ; scales ovato-laciniate nearly 
appressed, Styles equal to the depressed ovary, capsule de- 
: J covered by the remains of the corolla, (Tas. Il. 
= On Cephalanthus ; also on Vernonia, Aster, Behmeria, 
and other plants (chiefly Compositæ), near ponds and swamps 
out St, Louis, where it is the commonest species. I have 
: observed it, ever since 1833; but always confined to the im- 
* Mediate vicinity of Cephalanthus. Jul. Sep. 
= 2. C. Coryli (n. sp.; stem branching, flowers peduncled 
Subumbellate, mostly 4-partite; tube of the corolla cylindri- 
al, equalling in length the ovate subacute crenulate inflexed - 
lobes and the acute carinate segments of the calyx, stamens — 
little shorter than the limb, scales appressed bifid consist- 
alg : o 2 | 
Spreading segments and of the ovate obtuse calycine lobes; 
