336  Monography of the North American Cuscutinee. 
regularly 4-parted, in others nearly always 5-parted. ‘The calyx 
is constantly monosepalous, deeply and somewhat irregularly 4 
to 5-parted, and persistent. 
The corolla is cylindric, urceolate, or campanulate, with the 
limb erect, campanulate, spreading or reflexed, and together with 
the stamina either persistent at the base of the capsule, or more 
frequently separated from its insertion and covering its summit. 
Its texture is in some species nearly membranaceous, in others 
thicker and more fleshy. 
The stamina are united with the tube of the corolla up to the 
base of the segments. . Near their base, within the tube of the 
corolla, they bear a scale which is evidently not a distinct organ, 
but only an appendage of the stamina. They are present in all 
the species which I have examined ; sometimes consisting only 
of one or few teeth on both sides of the filament, (as in C. Co- 
ryli,) but commonly forming a distinct lamina. In some they 
are bifid, in others undivided; but in all either crenulate or fm- 
briate, or laciniately or pinnatifidly divided. They are erect and 
appressed to the tube in several species; while in others they are 
convergent, closing the tube and including the ovary. 
The ovary is always 2-celled, 4-ovulate ; the styles two, (in @ 
single species united into one,) frequently unequal in length; ina 
few cases supported by astylopodium. The stigma is either fill- 
form, asin the European, or capitate, as in the American species: 
The capsule is globose or depressed, crowned by the persistent 
styles and stylopodium (when the latter is present) ; it is 2-celled, 
and sometimes 4-seeded ; but more generally by abortion, 3-2) 
and even l-seeded. In the European species, it separates by cil 
cumcision from its base, leaving the dissepiment persistent on the 
calyx. Inthe American, the capsule does not appear to ope? 
regularly, but it separates easily from the calyx when ripe. 
Ihave seen very few abnormal irregularities in the flowers of 
Cuscuta. Sometimes one or more segments of the corolla are 
rtially or entirely changed into a stamen, and the capsule 18 
occasionally 3—4-carpellary, instead of 2-carpellary. 
Je 1, Cuscura CerHaLANTHI, 7. sp. . 
_ Stem high, branching ; flowers somewhat pedunculate, mostly 
5-parted; tube of the corolla cylindric, (after flowering vent 
-cose,) twice the length of the obtuse speading segments, and of 
ec ai oe, ons 
