Jan., 1923] YUNCKER-SOUTH AMERICAN SPECIES OF CUSCUTA 
II 
36. Cuscuta micrantha Choisy 
Cuscuta micrantha Choisy, Mem. Soc. Phys. Hist. Nat. Geneve 9: 271, PL 1, fig. 3. 1841; 
and in De Candolle, Prodromus 9: 453. 1845.—Gay, FI. Chile 4: 446. 1849.— 
Engelmann, Trans. Acad. Sci. St. Louis 1: 500. 1859.—Reiche, FI. Chile 5: 171. 
1910. 
Cuscuta popayanensis Poeppig, ex Engelmann, Trans. Acad. Sci. St. Louis 1: 500. 1859. 
? Cuscuta pauciflora Philippi, Linnaea 33: 185. 1864. 
Cuscuta sparsiflora Philippi in sched. ex Reiche, FI. Chile 5: 171. 1910. 
Stems slender. Flowers about 2-3 mm. long, on pedicels shorter than 
the flowers in rather dense, compact clusters, or looser in the second variety; 
calyx about as long as the corolla tube; lobes ovate, acute; corolla cam- 
panulate, lobes ovate, acute, upright or slightly spreading, shorter than, or 
(in the second variety) about equaling, the tube; scales narrow, oblong, quite 
firmly attached for nearly their whole length, sparingly fringed about the 
top with few processes, bridged at about a quarter of their height, or the 
scales larger and more prominently fringed and with the bridges somewhat 
higher, about reaching the stamens; stamens shorter than the lobes, fila¬ 
ments shorter than or exceeding the length of the ovate-cordate to oval 
anthers, slender or slightly subulate; styles slender and shorter than, or 
about equal to, the ovoid ovary. Capsule ovoid, or globose and somewhat 
depressed, hilum small, about 1 mm. long. 
Cuscuta micrantha typica 
(PI. I, fig. 2, A-E) 
Flower clusters small, compact; corolla lobes shorter than the tube, 
scales narrow, sparingly fringed about the upper portion only, flowers about 
2 mm. long, anthers small, ovate-cordate, ovary and capsule ovoid, stig¬ 
mas small. 
Type locality: Prov. Coquimbo, Chile. Distribution: Central Chile. 
Specimens examined: Chile: Prov. Coquimbo (Gay 338, the type, a fragment in the 
Engelmann herbarium); Santiago (Philippi; Reiche III-99) ; Cerro Blanco (Hastings 134. 
This specimen shows characters of this and also of the next variety). 
Cuscuta micrantha latiflora Engelmann 
(PI. I, fig. 2, F, G) 
Cuscuta micrantha latiflora Engelmann, Trans. Acad. Sci. St. Louis 1: 500. 1859.—Gay, 
FI. Chile 4: 446. 1849. 
Cuscuta pusilla Philippi, in herb. 
Flowers 2.5-3 mm. long, corolla lobes about equal to the tube, anthers 
oval and larger than in the preceding variety; scales larger and more 
prominently fringed. Capsule globose and somewhat depressed, three- or 
four-seeded. 
Type locality: Concon, Chile. Distribution: Chile. 
Specimens examined: Chile: (v. Better 142; this specimen approaches the typica 
variety; Reed); Concon (Poeppig, taken to represent the type, a fragment in the Engel¬ 
mann herbarium); Valparaiso (Brenning 91) ; Panamavida, Linares (E. W. D. and Mary 
M. Holway Dec. 17, 1919); Desert of Atacama (Morong 1163 ); Sans Jago (Hohenacker 
489). 
