570 
AMERICAN JOURNAL OF BOTANY 
[Vol. 9. 
slightly above the middle, fringed with medium-length processes; styles 
slender, longer than the globose-ovoid ovary; stigmas globose. Capsule 
globose-ovoid, circumscissile, carrying the withered corolla at the apex; 
seeds 1-1.25 mm. long, roundish, hilum linear. 
This species differs from C. hracteata with which it is closely allied in 
the shapes of the stigmas, bracts, sepals, and scales and in the inflorescence. 
From C. glomerata, a prairie species of North America, it differs mainly in 
the possession of a circumscissile capsule. 
Type locality: Prov. Goyaz, Brazil. Distribution: Provinces of Goyaz 
and Sao Paulo, Brazil. 
Specimens examined: Brazil: Prov. Goyaz (Glaziou 21811, the type, in the Botanical 
Institute at Dahlem, a fragment in the author's herbarium, 21811^; Ule joog); Prov. Sao 
Paulo (Saint Hilaire 711), 
Subsection Obtusilobae Engelmann 
Key to the Species 
Flowers about as broad as long, corolla lobes mostly as long as the tube 
Corolla lobes more or less fleshy, papillate, acute tips inflexed, 
styles mostly shorter than the ovary 
Corolla lobes not fleshy, or, if so, not papillate, obtuse, tips mostly 
not inflexed, styles equaling or exceeding the ovary 
Calyx lobes slightly or not at all overlapping, scales reaching 
the stamens 
Calyx lobes distinctly overlapping, scales scarcely reaching the 
stamens 
Flowers elongated, corolla lobes much shorter than the cylindrical tube 
of the corolla 
Calyx divided to the middle or below, lobes orbicular 
Calyx lobes shorter than the calyx tube 
Calyx lobes obtuse 
Flowers mostly about 3 mm. long, scales about reaching the 
filaments, bridged at the middle or above 
Flowers larger, scales shorter than the tube, bridged below 
the middle 
Calyx lobes acute 
16. Cuscuta corniculata Engelmann 
(PI. II, fig. 12, A-E) 
Cuscuta corniculata Engelmann, Trans. Acad. Sci. St. Louis i: 504. 1859. 
Cuscuta corniculata sphaerocyma Engelmann, Trans. Acad. Sci. St. Louis i: 504. 1859. 
— Progel in Martins, Flora Brasiliensis 7: 382, PI. 127, fig. 4. 1871. 
Stems slender to medium. Flowers about 3 mm, long, subsessile in 
dense lateral clusters; calyx shorter than the corolla tube; lobes ovate, 
obtusish, slightly, or not at all, overlapping; corolla campanulate, slightly 
fleshy; lobes ovate, acute, spreading, about as long as, or shorter than, the 
tube, tips inflexed and with the cells slightly papillate; stamens slightly 
shorter than the lobes, the oval anthers shorter than the stout, subulate 
filaments; scales reaching the stamens, abundantly fringed with medium- 
length processes, bridged at about the middle; styles stout and but slightly 
16. C. corniculata. 
17. C. incurvata. 
18. C. trichostyla. 
19. C. orbiculata, 
20. C. americana. 
21. C. corymbosa. 
22. C. prismatic a. 
