968 CUSCUTACEAE 
linear, 3 the length of the tube, copiously fringed near the top and sparingly on the sides 
with slender processes : capsules longer than thick, about 2 mm. long, each capped with the 
rather persistent corolla. [C. glomerata Choisy. ] 
On tall herbs, mainly on Polygona, Ohio to Minnesota, Tennessee and Texas. Summer and fall. 
4. Cuscuta arvénsis Beyrich. Foliage pale yellow, deeper in age. Stems filiform, 
becoming loosely matted : flowers short-pedicelled in small rather loose clusters: calyx 
campanulate; lobes 5, broad, obtuse, barely as long as the corolla-tube: corolla rather 
campanulate ; lobes 5, lanceolate or triangular-lanceolate, acute or acuminate, as long as 
the tube, with inflexed tips; scales ovate or oblong-ovate, as long as the corolla-tube 
or slightly longer, fringed all around with short irregular processes: capsules spheroidal, 
2 mm. broad, each seated in the persistent corolla, indehiscent. 
On herbs and low shrubs, New York to the Northwest Territery and California, south to Florida, 
Texas and Mexico. Summer. 
5. Cuscuta Polygonórum Engelm. Foliage orange-yellow. Stems rather coarse ; 
branches often loosely matted : flowers sessile or nearly so, in small rather lax clusters : 
calyx broad ; lobes 4-5, ovate-oblong, acute or acutish : corolla little exserted ; lobes 4-5, 
triangular or ovate-triangular, longer than the tube, acute ; scales obsolete, usually of 1-3 
processes on either side of the base of the filament: capsules subglobose, 2.5-3 mm. in 
diameter, each seated in the persistent corolla. 
On Polygona and other herbs, Pennsylvania to Minnesota, south to Delaware and Arkansas. 
Summer and fall. 
6. Cuscuta indecóra Choisy. Foliage light yellow, deeper in age. Stems rather 
stout, branched ; branches loosely matted : flowers pedicelled, in loose umbel-like cymes : 
calyx more or less papillose ; lobes 5, ovate to lanceolate, acute, barely equalling the 
corolla-tube : corolla white, campanulate, about 3 mm. long; lobes 5, triangular, erose- 
crenulate, acute, slightly shorter than the tube, with incurved tips; scales ovate or oval- 
oblong, extending nearly to the sinuses, irregularly fringed with short processes through- 
out: capsules spheroidal, 3 mm. long, acute, each enveloped by the persistent corolla. 
[ C. decora var. pulcherrima Engelm.] ; 
i On herbs and low shrubs, Illinois to Nebraska, south to Florida, Texas and Mexico. Spring and 
ummer. 
7. Cuscuta Córyli Engelm. Foliage yellowish, or orange in age. Stems coarse; 
branches sometimes loosely matted : flowers short-pedicelled, in loose or rather dense 
umbel-like cymes: calyx-lobes 4-5, triangular or triangular-lanceolate, acutish, about 
equalling the corolla-tube : corolla campanulate or cylindric-campanulate, about 2 mm. 
long ; lobes 4—5, triangular or ovate-triangular, about as long as the tube, erose-crenulate, 
acute, with strongly inflexed tips; scales small, oblong, rounded at the apex, with few 
processes on each side: capsules much depressed, 2.5-3 mm. long, each enclosed by or at 
maturity capped with the persistent corolla. [C. inflexa Engelm. ] 
On the hazels and other shrubs or shrubby herbs, Virginia to Nebraska, south to Georgia and 
Arkansas. Summer. 
8. Cuscuta umbellàta H.B.K. Foliage pale yellow, slightly deeper in age: 
Stems filiform ; branches loosely matted: flowers short-pedicelled, in compound clustere 
cymes, these ending in umbel-like cymes : calyx broadly campanulate ; lobes triangular, 
acute, as long as the corolla-tube or longer: corolla 3-4 mm. long; lobes lanceolate, 
acute, longer than the tube, spreading or reflexed ; scales oval, longer than the corolla- 
tube, incurved : capsules spheroidal, 1.5-2 mm. broad, 4-lobed, each enclosed by the per- 
sistent corolla. 
On herbs, Florida to Texas and Arizona, south to Mexico. Spring to fall. 
9. Cuscuta Cephalánthi Engelm. Foliage yellow or yellowish white. Stems n" 
coarse, seldom matted : flowers short-pedicelled, in rather dense clusters : mg nieperite 
ovate, obtuse, shorter than the corolla-tube : corolla pale, about 2 mm. long; lo h 
ovate, obtuse or rounded, one-half as long as the tube or shorter, spreading ; scales — 
shorter than the corolla-tube, oblong or ovate-oblong, fringed mainly near the ti x 
short irregular processes: capsules subglobose, 3.5-4.5 mm. in diameter, enclosed by or 
capped with the corolla, which is finally deciduous. 
On shrubs and tall herbs, Pennsylvania to Minnesota and the Northwest Territory, 
and Arizona. Summer. 
10. Cuscuta rostrata Shuttlw. Foliage yellowish white. Stems coarse; bn 
sometimes loosely matted : flowers pedicelled, larger than those of the other Mile ubi: 
rather loose cymes : calyx-lobes 5, ovate-triangular, about 3 the length of the — be. 
corolla white, campanulate, 4-6 mm. long; lobes 5, ovate, about 3 the length of t fri " ad 
obtuse; scales about 3 as long as the corolla-tube, the body linear to spatulate, tring 
south to Texas 
