566 
AMERICAN JOURNAL OF BOTANY 
[Vol. 9, 
De Candolle, Prodromus 9: 460. 1845. — Engelmann, Trans. Acad. Sci. St. Louis 
i: 478. 1859. Not Hook. & Arnot, Bot. Beechy ex Engelmann, I.e. 
Cuscuta corymbosa Jussieu in herb, ex Engelmann, Trans. Acad. Sci. St. Louis i: 478. 
1859. 
Stems medium to coarse. Flowers 5-9 mm. long, sessile in dense, 
many-flowered, globular clusters, sometimes nearly an inch in diameter; 
calyx nearly as long as the corolla tube or infrequently only half as long as 
the tube; lobes triangular-ovate, acute to acuminate, overlapping; corolla 
cylindrical, becoming somewhat urceolate about the developing capsule, 
slightly saccate between the stamen attachments toward the base; lobes 
triangular-ovate, acute to acuminate, smooth or slightly papillate, over- 
lapping, upright to spreading or becoming reflexed in fruit, about half or 
three quarters as long as the tube; stamens much shorter than the lobes, 
oval-oblong; anthers subsessile or on short, stout filaments; scales oblong or 
somewhat oval, shorter than the tube, fringed with short processes, bridged 
at about a quarter of their height; styles about equal to the subglobose 
ovary, subulate and tapering into the ovary. Capsule globose, slightly 
depressed, circumscissile, with the withered corolla about it; seeds about 
1.5 mm. long, somewhat rostrate, hilum short, oblong. 
Cuscuta foetida typica 
(PI. V, fig. 24, A-E) 
Flowers 5-7 mm. long. Calyx nearly as long as or equaling the corolla 
tube; calyx and corolla lobes broadly triangular-ovate. 
Type locality: Quito, Ecuador. Distribution: In the Ecuadorian Andes. 
Specimens examined: Ecuador: (Seeman; Jameson in 1864); Quito (Humboldt, a 
fragment taken to be part of the type in the Engelmann herbarium; Couthouy in 1855; 
Spruce 50/7; Holmgren 442; E. W. D. and Mary M. Holway Aug. 15, 1920); Cuenca 
(E. W. D. and Mary M. Holway Sept. 10, 1920). 
Cuscuta foetida pycnantha (Bentham) n. comb. 
(PI. V, fig. 24, F) 
Cuscuta pycnantha Bentham, PI. Hartw. p. 226. 1839. 
Flowers 7-9 mm. long, corolla slenderly cylindrical. Calyx much 
shorter than the corolla tube, calyx and corolla lobes narrower than in 
typical variety, scales oblong. 
Type locality: Cuenca, Ecuador. (A fragment of the collection on which 
this variety is based, in the Engelmann herbarium, is labeled as from 
Colombia, and Engelmann so considered it in his citation in his monograph. 
However, a specimen of the same collector and number in the herbarium 
of the Royal Botanic Gardens at Kew is labeled as from near Cuenca, 
Ecuador, and a specimen of the same number in the Boissier herbarium 
gives similar information. All three specimens seem identical, and, inas- 
much as no other specimens have been seen from Colombia, it is probable 
that an error occurred in labeling the specimen in the Engelmann herba- 
rium.) Distribution: Known only from the type locality. 
Specimens examined: Ecuador: Cuenca (Hartweg 1238, the type, in the Royal Botanic 
Gardens, Kew, a fragment in the author's herbarium). 
