6 
AMERICAN JOURNAL OF BOTANY 
[Vol. io. 
Ilha do Governodor, Rio de Janeiro Bay (Miers 3430)] Isl. Paqueta, Rio de Janeiro Bay 
(Rose and Russell 20287)-, Tropical Brazil (Burchell 667A). 
Cuscuta racemosa nuda Engelmann 
Cuscuta racemosa nuda Engelmann, Trans. Acad. Sci. St. Louis 1: 505. 1859.—Progel in 
Martius, Flora Brasiliensis 7: 384, PI. 128, fig. 3. 1871. 
2 Cuscuta citricola Schlechtendal, Linnaea 22: 808. 1849. 
Cuscuta racemosa Regnelliana Progel in Martius, Flora Brasiliensis 7: 384. 1871. 
Calyx lobes ovate, not overlapping, nearly as long as the corolla tube; 
corolla lobes reflexed and about equal to the tube. Capsule depressed- 
globose, exserted, intrastylar aperture large; scales oblong. This variety 
when not in fruit looks very much like variety brasiliana. 
Type locality: “ Near Rio, Brazil.” Distribution: Southern Brazil. 
Specimens examined: Brazil: (Sellow, taken to represent the type, a fragment in the 
Engelmann herbarium); Prov. Minas Geraes (Regnell III 308; two collections of this 
number were examined, one collected Dec. 26, 1864, and the other Feb. 7, 1866. This is 
the type number of variety Regnelliana; Widgren in 1845). 
Cuscuta racemosa miniata Engelmann 
(PI. IV, fig. 23, F) 
Cuscuta racemosa miniata Engelmann, Trans. Acad. Sci. St. Louis 1: 505. 1859.—Progel 
in Martius, Flora Brasiliensis 7: 384. 1871. 
Cuscuta miniata Martius in Spix and Martius, Reise Bras. 1: 286. 1823. 
Cuscuta racemosa minuta Choisy, Mem. Soc. Phys. Hist. Nat. Geneve 9: 277. 1841; and 
in De Candolle, Prodromus 9: 456. 1845. 
Cuscuta tenuicaulis Glaziou, Mem. Soc. Bot. France 3: 491. 1911. 
Stems smooth or frequently papillate, the papillations extending part way 
on to the calyx in some specimens; calyx very short, the lobes commonly 
broader than long, overlapping; flowers fleshier in texture than those of 
the other varieties, and reddish. 
Type locality: Brazil. Distribution: Central and southern Brazil. 
Specimens examined: Brazil: (Martius 1292 , taken to represent the type, a fragment 
in the Engelmann herbarium; Ackermann in 1832); Prov. Minas Geraes (Vauthier 232; 
Schwacke 8208; Glaziou 19676, the type number of C. tenuicaulis; St. Hilaire B 1 2083; 
Langsdorff); Prov. Sao Paulo (St. Hilaire C 2 1488; Prov. Goyaz (Glaziou 20422 ); Prov. 
Matto Grosso, Cuyaba (Riedel 846 in part, mixed with C. partita). 
30. Cuscuta platyloba Progel 
(PI. V, fig. 27, A-E) 
Cuscuta platyloba Progel in Martius, Flora Brasiliensis 7: 381, PI. 127, fig. 3. 1871. 
Cuscuta racemosa calycina Engelmann, Trans. Acad. Sci. St. Louis 1: 505. 1859. 
Stems slender. Flowers 2-4 mm. long, on pedicels shorter than the 
flowers, in few- to many-flowered paniculate or racemose cymes; calyx 
about equal to the corolla tube; lobes ovate, obtuse, overlapping, entire or 
irregular, sometimes slightly carinate; corolla campanulate, lobes ovate, 
obtuse, overlapping, about equal to the tube, upright or becoming reflexed; 
stamens shorter than the lobes, anthers oval, about equal to, or shorter 
