Jan., 1923] YUNCKER — SOUTH AMERICAN SPECIES OF CUSCUTA 
5 
represent the type of Choisy’s C. corymbosa ); St. Augustin de Tango (Reed in 1867); 
Valparaiso (Rusby 2000)', Valdivia (Lechler 479)', Prov. Santiago (Philippi in 1861 and 
in 1862). 
Paraguay: Montevideo (Fruchard). 
Uruguay: Salto {Ost&n 3324). 
29. Cuscuta racemosa Martius 
Cuscuta racemosa Martius in Spix and Martius, Reise Bras. 1: 286. 1823.—Choisy, Mem. 
Soc. Phys. Hist. Nat. Geneve 9: 277, PI. 3, fig. 1. 1841; and in De Candolle, Prodro- 
mus 9:456. 1845. 
Cuscuta racemosa brasiliana Engelmann, Trans. Acad. Sci. St. Louis 1: 505. 1859.—Progel 
in Martius, Flora Brasiliensis 7: 384, PI. 125. 1871. 
Stems slender, smooth or rarely papillate. Flowers 2.5-4 mm. long, 
more or less glandular, on pedicels mostly about as long as the flowers, in 
loose, racemose clusters, membranous or somewhat fleshy, straw-colored to 
deep red; calyx shorter than the tube, or equaling it in one variety; lobes 
ovate, obtuse or rarely somewhat acutish; corolla campanulate, lobes ovate, 
obtuse or rarely slightly acutish, tips inflexed or straight; stamens shorter 
than the lobes, the oval anthers about equal to the stoutish, subulate 
filaments; scales mostly about reaching the stamens, oblong, copiously 
fringed particularly about the upper half, bridged below the middle; stigmas 
ordinarily large and frequently flattened, styles stoutish and not infrequently 
more or less subulate, equal to, or longer than, the globose or obovate 
ovary which is thickened at the top. Capsule globose, carrying the withered 
corolla about it or toward its base; seeds one to four in each capsule, oval, 
about 2 mm. long, hilum short, perpendicular or oblique. 
Key to the Varieties 
Calyx lobes ordinarily not overlapping, longer than broad, mostly reaching be¬ 
yond the middle of the corolla tube. 
Capsule covered or surrounded by the withered corolla, not becoming mark¬ 
edly exserted.. typica . 
Capsule becoming exserted and not covered by the withered corolla. nuda . 
Calyx lobes commonly more or less overlapping, about as broad as long, ordinarily 
not reaching the middle of the tube and frequently papillate. miniata. 
Cuscuta racemosa typica 
(PI. IV, fig. 23, A-E) 
Flowers about 3 mm. long; calyx shorter than the corolla tube, lobes 
ordinarily not overlapping, longer than broad; corolla lobes shorter than 
the tube, obtuse, tips commonly inflexed. 
Type locality: Province Rio de Janeiro, Brazil. Distribution: Central 
and southern Brazil. 
Specimens’ examined: Brazil: (Riedel; Booz; Ule 321; Pohl 5100 ); Prov. Rio de 
Janeiro (Graham; Riedel 693; Martius in 1817, taken to represent the type, a fragment 
in the Engelmann herbarium; Rudio; Capt. Wilkes; Burchell 2739; Gardner 5555; 
Martius 941; Gaudichaud 307 ); Petropolis (Ball in 1882); Prov. Parana (Dusen 4006, 
7987, 10003, 11349)’, Prov. Minas Geraes (Lindberg 167; Hillosen 4484; Gaudichaud 32; 
St. Hilaire D. 337; Weddell); Caldas (Hoehne 2774)', Prov. Sao Paulo (Brade 6026; Glaziou 
19677 in part; Gaudichaud 345) ; Mboi (Gehrt 3351)] Prov. Santa Catharina (Ule 1848); 
