74 ILLINOIS BIOLOGICAL MONOGRAPHS (164 



much like the bracts; corolla cylindrical; lobes ovate, lanceolate, acute, 

 sometimes somewhat cuspidate, spreading or reflexed; scales about reach- 

 ing the filaments, oblong, their processes of medium length and numerous, 

 bridged at about the middle; stamens shorter than the lobes; filaments as 

 long as or shorter than the oblong-oval anthers; ovary globose to slightly 

 conic, somewhat two-pointed; styles longer than the ovary; stigmas 

 capitate. Capsule globose, slightly conical to pointed by the thickened 

 apex, somewhat glandular on the upper portion, carrying the withered 

 corolla at its apex; seeds about 1.5 mm. long, slightly oblique, one or 

 infrequently two in a capsule, globose or compressed, brown, roughened; 

 hilum short, linear, oblique. 



Type locality: "Fields and wastes on the Rio Grande," Texas. 

 Range: Texas, New Mexico and northern Mexico. 



Specimens examined: United States: New Mexico; Dona Ana Co. (Wooton in 1899 

 and in 1902, Standley 426, 6370 and in 1906, Standley & Wooton 336, in 1906 and in 1907), 

 Chaves Co. (Earle & Earle 289). Texas; El Paso (Wright 392, 518, taken as the type, in the 

 Engelmann Herb., 1628, Bigelow in 1852, Thurber 818, Jones 4170, in 1884, Stearns 455), 

 Presidio Valley (Havard in 1881 and in 1883). 



Mexico: Chihuahua (Pringle 785), Presidio del Norte (Parry in 1852). 



Cuscuta glomerata Choisy 

 [Figures 50, 120 and 137] 



C. glomerata Choisy, Mem. Soc. Phys. et Hist. Nat. Geneve, 9:280, pi. 4, fig. 1, 1841; and in 

 DC, Prodromus, 9:458, 1845. Engelmann, Trans. Acad. Sci. St. Louis, 1:510, 1859. 

 Matthew, Bull. Torr. Bot. Club, 20, pi. 165, fig. 12, 1893. Britton & Brown. lUustr. 

 Flora. 3:31, fig. 2967, 1898; 2 ed., 3:52, fig. 3453, 1913. 



C. aphylla Rafinesque, Amer. Monthly Mag. & Crit. Rev., 4:40, 1818; not Loureiro 1790. 



?C. paradoxa Rafinesque, Annals of Nature, 1 :13, 1820. 



C. ainericana Hooker, Comp. to the Bot. ]Mag., 1:173, 1835; not L. 1753. 



?Anthanema paradoxa Rafinesque, Fl. Tellur., 4:90, 1836. 



Lepidanche compositarum Engelmann, Amer. Journ. Sci. & Arts, 43?: 344, pi. 6, figs. 30-35, 

 1842. 



L. compositarum solidaginis Engelmann, Amer. Journ. Sci. & Arts, 43:344, 1842. 



L. compositarum helianthi Engelmann, Amer. Journ. Sci. & Arts, 43:344, 1842. 



Stems medium, disappearing early from between the dense straw- 

 colored, rope-like floral masses which are wound tightly about the stem 

 of the host. Flowers glabrous, 4-5 mm. long, pentamerous, sessile, 

 mostly endogenously formed, breaking forth in two parallel rows on 

 opposite sides of the stem, much imbricated with numerous, scarious, 

 lacerated, cupped, oblong, obtuse to acutish bracts with recurved tips; 

 sepals distinct, oblong-oval, obtuse to acutish, their tips somewhat spread- 

 ing but ordinarily not recurved, otherwise similar to the bracts; corolla 

 cylindrical; lobes spreading or sometimes reflexed, oblong to lanceolate, 

 obtuse or acutish, sometimes mucronate, usually with a row of glandular 

 cells along the mid -portion, shorter than the corolla tube; scales shorter 

 than the tube, oblong, more profusely fringed at the apex than along the 



