SYSTEMATIC ARRANGEMENT OF THE SPECIES 
Mexico, Mornay! in Hb. Delessert; Tepic, Beechy! in Hb. Hooker; Jiirgensen! in Hb. Mus. Florent. — The 
only species known to me with stamens longer than the lobes of the corolla ; distinguished also by the large and dense 
masses (in one specimen over 1 inch thick and 2—3 inches long) of flowers ; pedicels branched but scarcely umbellate, 
mostly much longer than the flowers; flowers small and slender, lj-l£ lines long ; capsule opening late and irregu¬ 
larly; intrastylar aperture quite small; seeds usually two, 0.5 line long, compressed, rounded, slightly oblique at 
base, with, a very short transverse or oblique hilum. — Closely allied to G. umbellata ; principally distinguished by the 
inflorescence, the turbinate calyx, the smoothish seed. Less important differences are the erect lacinhe and long 
filaments. 
Var. 0. saccharata : bracteis pedicellis totoque flore papilloso-adspersis ; laciniis staminibus stylisque breviori- 
bus; seminibus minoribus. — G. Sidarum, Liebm.! in Hb. 
On the coast of Oaxaca, parasitic on different species of Sida, Liebmann! in Hb. Hooker. — Inflorescence the 
same as in the species; flowers even smaller, 1J lines long; laciniae shorter; stamens shorter; anthers orbicular ; 
capsule readily circumscissile ; seeds 0.4 line long. 
]/ 37. C. leptantha, n. sp. : caulibus capillaceis ; bracteis ovatis acuminatis; pedicellis filiformibus Isevibus 
umbellato-fasciculatis; floribus 4-meris gracilibus ; calycis grannlato-hispidi lobis triangularis acutis tubo coroll ge 
cylindrico dimidio brevioribus; laciniis lanceolatis acutis erecto-patulis tubo multo brevioribus ; filamentis filiformibus 
cum antheris ovatis brevioribus lacinias subsequantibus ; squamis ovatis dentato-fimbriatis tubo multo brevioribus ; 
ovario parvo globoso, stylis capillaribns longissimis demum exsertis ; capsula corollee basi hispidula indusiata calyptra- 
taque eircumscissa ; seminibus globoso-triangulatis verruculosis. 
Western Texas, Chs. Wright! 1849, nro. 522 ; prairies of the Leona, in the same region, the same! 1852, 
nro. 1639 in part (mixed with G. umbellata), in both instances on Euphorbia albo-marginata. — This is the only 
Cuscuta seen by me with (thus far) constantly 4-parted flowers. Flowers 2-2J lines long, pedicels some¬ 
times twice as long; calyx campanulate-globose, short in proportion, about j line long, as well as the [490 (40)] 
base of the tube in all the specimens seen, papillose or, in the dry plant, scabrous; tube of the corolla 
slender, much longer than calyx; corolla enveloping the small capsule and contracted above it, capsule readily opening 
at base with a wide aperture ; seeds 2-4, almost globose, 0.4 line long, with a very short hilum. 
V 38. C. hyalina, Roth! Nov. Spec. p. 100, not Wight, nor Boissier. 0. Arabica , Wight, Ic. t. 1371, not Fresenius. 
G. oxypetala, Boissier! Diag. Or. II. 3, 130. C. acutissima, Buchinger! mss. in PI. Schimper. — This well-marked 
species of the tropical parts of the East Indies (Heyne! Stocks! 478; Hooker & Thomson! and others), extending 
into Abyssinia (Schimper! 1522), is certainly the plant Roth had in view, as the specimens with Heyne’s and with 
Roth’s own labels in the Hb. of the Botanical Garden of St. Petersburg prove. Roth’s description, however, cannot 
but have misled all future authors, as he speaks of scales, no trace of which is present in the different specimens I had 
occasion to examine, not even in Roth’s own, nor are the flowers usually 4-parted, but almost always 5-parted. 
Boissier, 1. c., already mentions that the capsule bursts irregularly. Whether it more readily opens when fully 
ripe is unknown, but in all the specimens examined it rather adheres to the base in the calyx, and bursts only when 
some force is used, the deeply bilobed lower part of the dissepiment remaining with the base. It therefore very 
properly comes in at the end of this section, uniting it with the next. 
With C. Galifornica this species is closely connected, and, indeed, is sometimes difficult to distinguish from it; but 
the texture of all the parts is thinner, semi-transparent, and shining, at least when dry; hence Roth’s name is quite 
appropriate. The adnate parts of the filaments are distinct, but no trace of scales is visible ; the ovary is conic ; the 
styles are still more hair-like and on the capsule divaricate ; the seeds usually ripen all four, — they are triangular, 
flattened, with the short, almost oblong hilum perpendicular or transverse, both forms being found in seeds from the 
same capsule. 
Sect. 6. CLISTOGRAMMIGA. 
Styles of unequal length, cylindric, rarely almost absent; stigmata capitate. Capsule never opening at base, 
baccate, persistent with the calyx, or separating from it entire; intrastylar aperture often large, but generally not 
penetrating into the capsule. Seeds four in each capsule, or fewer, sometimes only one ; rounded or usually triangular- 
flattened, often rostrate ; hilum linear, short or longer, transverse or oblique or perpendicular. 
Inflorescence variable,; either an umbelliform or somewhat globose cluster with pedicelled flowers ; [491 (41)] 
or a loose racemiform or paniculate cyme, finally more or less crowded ; or (in the four last species) 
compact and often continuous clusters of closely sessile flowers with many sterile bracts. The corolla remains either 
at base or around the capsule or covers its top. 
This section is the richest in species, and the most common in North and South America and on the Islands of 
the Pacific. One species (G. obtusiflora) is a cosmopolite, being found in North and South America, Oceanica, Asia, 
and Europe ; and one (0. appendicutata ) is peculiar to South Africa. 
