OF THE GENUS CUSCUTA. 89 
imbricate obtusish lobes, ete. The laciniz of the corolla, always elongated, are in some flowers acutish, in others 
almost obtuse 
34. C. partita, Choisy! Cusce. 188, t. 5, £3; DC. Prod. IX. 460. — Brazil, Blanchet! 3047; Gardner! 2684; 
westward to Bolivia, Weddell! 3483 and 3611; and northward to Venezuela, Maracaibo, Karsten! and Curacao, 
Friedrichsthal! 375, b; usually low, on herbaceous plants, Leguminose, Malvaceae, Euphorbiacee, etc. —Cymes 
compound, paniculate; bracts ovate-lanceolate, often crenate ; flowers small, usually less than 1 line long, more or less 
glandulous, and filled with coloring matter, deep-red when dry, like C. miniata ; calyx divided almost to the base, 
lobes lanceolate acute ; lobes of corolla of same shape, at length reflexed with the points incurved ; tube of corolla at 
last ventricose, enveloping the capsule, divided by grooves which correspond to the stamens into five separate exter- 
nally convex compartments, as it were; scales as long as the tube or shorter, deeply fringed; capillary styles much 
longer than the small globose ovary, subexsert, sometimes recurved on the fruit; capsule very thin, hyaline, irregularly 
circumscissile with a wide opening; seeds 0,5-0.6 lines long, obliquely ovate, or, where only one in a cell is developed, 
rostrate; hilum linear-oblong, short, in the former seeds perpandiculas; in the latter transverse. 
e specimens from Bolivia have larger, less glandulous, and paler flowers, 13-1} lines long, “ yellowish-white 
or rose-colored,” but do not differ in any other respect. 
35. C. umBELLATA, HBK.! N. Gen. Sp. III. 121; DC. Prod. IX. 460. C. parviflora, Willd.! Hb. 
nro. 3163. — This species seems to have been unknown to all later botanists, with the exception of Torrey, who 
recognized Humboldt’s plant in a specimen collected by Long’s expedition to the Rocky Mountains. Lately it has 
Sortie up from many localities along the United States and Mexican boundary line, from northern Mexico, and from 
the Antilles. In Brazi a form has been collected which I cannot specifically distinguish from the Mexican plant. — 
The flowers of this species are arranged in loose compound fasciculate cymes, the ultimate divisions forming umbels of 
3-5~7 flowers, supported by a single ovate-lanceolate bract ; pedicels usually longer than the flower ; flower, with the 
lobes of the corolla erect, 1}-2 lines long ; calyx broadly campanulate, thin and shining, at least when 
dry ; lobes triangular, acute, as long or longer than the shallow tube of the corolla; lacinie narrowly [488 (38)] 
lanceolate, elongate, acute, longer than the tube, spreading or reflexed ; scales usually broadly oval, large, 
longer than the tube, incurved ; styles much Jonger than the globose-depressed ovary, rarely of same length ; corolla 
enveloping the small, thin, depressed, almost 4-lobed capsule, which is commonly circumscissile, but in some instances 
rather irregularly bursting; seeds generally all four developed, 0.5~0.6 lines long, triangular, oblique, with a very 
short linear hilum. 
It is always found in dry places on low herbs, especially haters also Kallstremia, Amarantus, Atriplex, 
Polygonum, etc., and sometimes even on some prostrate Hup. tween Queretaro and Salamanca, Hum- 
boldt! Saltillo and Camargo, Gregg! Western Texas, New iaiien: a Arizona, Wright! 1627, 1636, 1639 
(371, 510, 695), Bigelow! “Schott ! Santa Fé, Fendler ! 659; foot of the Rocky Mountains, James! Jamaica, 
Broomfield ! Purdie ! 
Dr. Hays found a specimen on the San Pedro River, Arizona, on Sueda, with much more dense inflorescence, 
greatly resembling a form of C. Californica,— which will be noticed below, — parasitic on the same saline plant, and 
mainly distinguished by the broadly campanulate, not turbinate, calyx, the circumscissile capsule, and the seeds 
Some specimens from New Mexico show a tendency to papillose pubescence; and one from Sonora, Coulter ! 
1010, on some Euphorbia, has the unusually small flowers (1 line ong) quite papillose-scabrous. 
ar. B.? DESERTORUM. CC. desertorum, Martius! in Hb.: pedicels long; flowers less crowded, smaller, 1 line 
long ; lanceolate-linear lacinize twice as long as tube; scales small, bifid or reduced to two lateral toothed gros : 
styles shorter than the exsert capsule, which is circumscissile with a small opening; intrastylar aperture large 
only 0.4 line long. —On Portulaca and Ehrenbergia, in the province of Piauhy, Brazil, Martius! — Another sini 
form, but with longer tube and shorter laciniz# and rather larger scales, was collected by Gardner! 2425, in the 
province of Ceara, in the same neighborhood, also on Portulaca. 
A specimen from the island of Antigua in Hb. ‘Mastin: Wullschlegel! 352, seems to belong here, though the 
(unripe) capsules do not open ; flowers larger and more densely clustered than in the common form, calyx and capsule 
glandulous, intrastylar aperture large. 
36. C. GRACILLIMA, n. sp.: caulibus tenuissime capillaceis demum deciduis ; floribus in fasciculos decompositos 
_~ demum dense glomeratos congestis ; bracteis lineari-lanceolatis ; pedunculis ramosissimis ; pedicellis capil- 
laceis flore gracili longiotitvas 5 ; salves turbinati lobis lanceolatis szepe apice recurvis tubum coroll paulo [489 (39)] 
superantibus ; laciniis lanceolatis subulatis tubo multo longioribus erectis apice subrecurvis ; nibus 
lacinias superantibus, filamentis e basi subulata capillaceis, antheris ovatis; squamis laceris fimbriatis incurvis tubum 
excedentibus ; ovario parvo globoso, stylis capillaceis longissimis antheras fere attingentibus ; capsula corolle rudi- 
mento indusiata demum irregulariter transverse disrupta; seminibus lenticularibus leviusculis.—C. fetida, Hook. & 
Arn.! Bot. Beechy, 304, non HBK. (C. subtilis, Chaubard! in Hb. 
12 
