157] NORTH AMERICAN AND WEST INDIAN CUSCUTA—YUNCKER 67 



Turner (Standley 9848), Sibley (Bush 812), Fish Lake (Bush in 1888), St. Louis (Eggert in 

 1878), Polk Co. (Standley 9902), Jackson Co. (Bush 1011, 1067), Barry Co. (Trelease 1112), 

 McDonald Co. (Palmer 4149), Meramec (Pammel in 1886), Bismark (Bush in 1893), Camp- 

 bell (Bush in 1893), Taney Co. (Eggleston 12249), Jasper Co. (Palmer 808, 2737, 2821). 

 Nebraska; Holt Co. (Clements 2799 H), Lincoln (without indication of collector in 1889). 

 Arizona; Grand Canyon (Eggert in 1886). Texas; Columbia (Bush 1509, 1568, 1569). 

 Arkansas; Prescott (Hollister 120), Little Rock (without name of collector, in 1885), Baxter 

 Co. (Palmer 4757), Marion Co. (Palmer 8407). Indian Territory (Bush 387), Cherokee 

 Nation (Blankinship in 1895), Sapulpa (Bush 1416). 



Canada: (Armstrong in 1892). Ontario; Kingston (Fowler in 1884 and in 1894). New 

 Brunswick; Miramichi, Black River (Fowler in 1892), Fredricton (Fowler in 1880). Quebec; 

 Longueuil (Brother Victorin 3147). 



Cuscuta gronovii calyptrata Engelmann 



C. gronovii calyptrata Engelmann, Trans. Acad. Sci. St. Louis, 1:508, 1859. 



C. calyptrata (Engelmann) Small, Flora of the Southeastern United States, p. 969, 1903. 



C. bonariensis Engelmann, Trans. Acad. Sci. St. Louis, 1:508, 1859; in synon. 



Flowers deeper campanulate and relatively larger; corolla surrounding 

 the apex of the capsule. The specimens of C. bonariensis in Engelmann's 

 herbarium are definitely characterized by the corolla capping the capsule, 

 but it is somewhat doubtful to the writer if the specimens of C. gronovii 

 exhibiting this character less definitely are the same. 



Type locality: Western Louisiana. Range: Texas to Louisiana. 



Specimens examined: United States: Louisiana (Gregg, taken as the type, in the 

 Engelmann Herb.). Texas; Houston (Lindheimer in 1841, 235?). 



Cuscuta curta (Engelmann) Rydberg 

 [Figures 38, 98, 99 and 136] 



C. curta (Engelmann) Rydberg, Bull. Torr. Bot. Club, 40:466, 1913. — Stevens, Amer. Journ. 



Bot., 3:185, figs. 5-6, 1916; (not C. plattensis). 

 C. umbrosa Hooker, Fl. Bor. Amer., 2:78, 1840; (in part) according to Engelmann, Trans. 



Acad. Sci. St. Louis, 1:508, 1859. 

 C. gronovii curta Engelmann, Trans. Acad. Sci. St. Louis, 1 :508, 1859. 

 C. megalocarpa Rydberg, Bull. Torr. Bot. Club, 28:501, 1901. 



Stems coarse. Flowers glabrous, about 2-3 mm. long, pentamerous, 

 on short pedicels as long as or sometimes shorter than the flowers, in 

 cymose panicles, the clusters becoming globular because of the growth 

 and crowding of the capsules; calyx lobes ovate, obtuse, overlapping, their 

 edges infrequently slightly serrulate and uneven, reaching about the 

 middle of the corolla; corolla campanulate; lobes triangular, obtuse, spread- 

 ing ordinarily reflexed in fruit, scales shorter than the tube, rather variable, 

 but mostly truncated or more or less divided and fringed with medium 

 length processes, bridged at about the middle; stamens slightly shorter 

 than or about as long as the corolla lobes; anthers oval, about equal to or 

 shorter than the subulate filaments; ovary globose-conic, styles very short, 

 about one-fourth the length of the ovary. Capsule globose-conic, some- 

 what umbonate or beaked, 3-6 mm. in diameter, with the withered corolla 



