Dec, 1922] YUNCKER SOUTH AMERICAN SPECIES OF CUSCUTA 
561 
lapping; corolla campanulate, becoming urceolate in fruit; lobes shorter 
than the tube, ovate, obtuse, upright, edges finely serrate and uneven; 
stamens shorter than the lobes; anthers oval or oblong, about as long as the 
filaments; scales very short, not reaching to the middle of the tube, trun- 
cated or triangular, bridged at about the middle, with a few medium-length 
processes about the top, or sometimes these lacking; styles subulate, shorter 
than the depressed-globose ovary; stigmas comparatively large, peltate. 
Capsule depressed-globose, circumscissile, intrastylar aperture large, with- 
ered corolla about the upper part; seeds about 2.5 mm. long, reddish, 
usually four in each capsule, hilum short. 
This species bears a resemblance to C. grandiflora from which it differs 
in the possession of scales and a smooth capsule, and also to C. glohifiora 
from which it differs by having pedicellate flowers, very short scales, and 
overlapping calyx lobes. 
Type locality: "Sierra Achala de Cordoba, Argentina." Distribution: 
Known only from the type locality. 
Specimens exammed: Argentina: Sierra Achala de Cordoba (Hieronymus Feb. 2, 
1883, the type, in the Botanical Institute at Dahlem, a fragment in the author's herbarium) . 
4. Cu scuta argentinana n. sp. 
(PL II, fig. 11, A— E) 
Stems medium. Flowers 2-3 mm. long, on pedicels shorter than or 
exceeding the flowers, in loose, umbellate, or cymose clusters; calyx shal- 
lowly campanulate or rotate; lobes ovate or triangular, obtuse, about as 
long as the corolla tube; corolla shallowly campanulate-rotate; lobes 
spreading, ovate, obtuse, longer than the tube, edges more or less revolute 
and finely serrate; stamens inserted at the sinus, curving in over the ovary, 
filaments stout, subulate, and equal to or longer than the oval anthers; 
scales thick, exceeding the tube, spatulate, fringed with short processes, 
bridged very low; ovary depressed-globose, papillate; styles very short, 
stout; stigmas flattened. Capsule depressed-globose, papillate, circum- 
scissile, with a thickened collar about the large intrastylar aperture; seeds 
two to four in each capsule, about 2 mm. long, oval, hilum oblique. 
This species resembles C. grandiflora in many respects but differs from 
it in the possession of scales, shorter styles, stamens inserted at the sinus, 
and in not having fimbriate perianth segments. 
Type locality: Argentina. Distribution: Known only from the type 
locality. 
Specimen examined: Argentina: (Jorgensen 1160, the type, in the U. S. National 
Herbarium as sheet no. 704,804). 
5. Cuscuta microstyla Engelmann 
(PI. I, fig. 4, A-E) 
Cuscuta microstyla Engelmann, Trans, Acad. Sci. St. Louis i: 506. 1859. — Progel in 
Martius, Flora Brasiliensis 7: 386. 1871. — Reiche, Fl. Chile 5: 170. 1910. 
Stems medium. Flowers membranous, 3-4 mm. long, on pedicels 
shorter than or exceeding the length of the flowers, in lateral, cymose, few- 
flowered clusters; calyx lobes as long as the corolla tube, ovate, obtuse, 
